20797388500

素因数分解:

$2^2\times 5^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:400

約数の個数: 288

約数和(自身を含む): 55212917760

約数和(自身を除く): 34415529260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 49, 50, 62, 70, 98, 100, 124, 125, 139, 140, 155, 175, 196, 197, 217, 245, 250, 278, 310, 350, 394, 434, 490, 500, 556, 620, 695, 700, 775, 788, 868, 875, 973, 980, 985, 1085, 1225, 1379, 1390, 1519, 1550, 1750, 1946, 1970, 2170, 2450, 2758, 2780, 3038, 3100, 3475, 3500, 3875, 3892, 3940, 4309, 4340, 4865, 4900, 4925, 5425, 5516, 6076, 6107, 6125, 6811, 6895, 6950, 7595, 7750, 8618, 9653, 9730, 9850, 10850, 12214, 12250, 13622, 13790, 13900, 15190, 15500, 17236, 17375, 19306, 19460, 19700, 21545, 21700, 24325, 24428, 24500, 24625, 27125, 27244, 27383, 27580, 30163, 30380, 30535, 34055, 34475, 34750, 37975, 38612, 42749, 43090, 48265, 48650, 49250, 54250, 54766, 60326, 61070, 68110, 68950, 69500, 75950, 85498, 86180, 96530, 97300, 98500, 107725, 108500, 109532, 120652, 121625, 122140, 136220, 136915, 137900, 150815, 151900, 152675, 170275, 170996, 172375, 189875, 191681, 193060, 211141, 213745, 215450, 241325, 243250, 273830, 299243, 301630, 305350, 340550, 344750, 379750, 383362, 422282, 427490, 430900, 482650, 486500, 538625, 547660, 598486, 603260, 610700, 681100, 684575, 689500, 754075, 759500, 763375, 766724, 844564, 848873, 851375, 854980, 958405, 965300, 1055705, 1068725, 1077250, 1196972, 1206625, 1341767, 1369150, 1496215, 1508150, 1526750, 1697746, 1702750, 1916810, 2111410, 2137450, 2154500, 2413250, 2683534, 2738300, 2992430, 3016300, 3053500, 3395492, 3405500, 3422875, 3770375, 3833620, 4222820, 4244365, 4274900, 4792025, 4826500, 5278525, 5343625, 5367068, 5942111, 5984860, 6708835, 6845750, 7481075, 7540750, 8488730, 9584050, 10557050, 10687250, 11884222, 13417670, 13691500, 14962150, 15081500, 16977460, 19168100, 21114100, 21221825, 21374500, 23768444, 23960125, 26392625, 26835340, 29710555, 29924300, 33544175, 37405375, 41594777, 42443650, 47920250, 52785250, 59421110, 67088350, 74810750, 83189554, 84887300, 95840500, 105570500, 106109125, 118842220, 134176700, 148552775, 149621500, 166379108, 167720875, 207973885, 212218250, 297105550, 335441750, 415947770, 424436500, 594211100, 670883500, 742763875, 831895540, 1039869425, 1485527750, 2079738850, 2971055500, 4159477700, 5199347125, 10398694250, 20797388500]

約数ペア:

[(1, 20797388500), (2, 10398694250), (4, 5199347125), (5, 4159477700), (7, 2971055500), (10, 2079738850), (14, 1485527750), (20, 1039869425), (25, 831895540), (28, 742763875), (31, 670883500), (35, 594211100), (49, 424436500), (50, 415947770), (62, 335441750), (70, 297105550), (98, 212218250), (100, 207973885), (124, 167720875), (125, 166379108), (139, 149621500), (140, 148552775), (155, 134176700), (175, 118842220), (196, 106109125), (197, 105570500), (217, 95840500), (245, 84887300), (250, 83189554), (278, 74810750), (310, 67088350), (350, 59421110), (394, 52785250), (434, 47920250), (490, 42443650), (500, 41594777), (556, 37405375), (620, 33544175), (695, 29924300), (700, 29710555), (775, 26835340), (788, 26392625), (868, 23960125), (875, 23768444), (973, 21374500), (980, 21221825), (985, 21114100), (1085, 19168100), (1225, 16977460), (1379, 15081500), (1390, 14962150), (1519, 13691500), (1550, 13417670), (1750, 11884222), (1946, 10687250), (1970, 10557050), (2170, 9584050), (2450, 8488730), (2758, 7540750), (2780, 7481075), (3038, 6845750), (3100, 6708835), (3475, 5984860), (3500, 5942111), (3875, 5367068), (3892, 5343625), (3940, 5278525), (4309, 4826500), (4340, 4792025), (4865, 4274900), (4900, 4244365), (4925, 4222820), (5425, 3833620), (5516, 3770375), (6076, 3422875), (6107, 3405500), (6125, 3395492), (6811, 3053500), (6895, 3016300), (6950, 2992430), (7595, 2738300), (7750, 2683534), (8618, 2413250), (9653, 2154500), (9730, 2137450), (9850, 2111410), (10850, 1916810), (12214, 1702750), (12250, 1697746), (13622, 1526750), (13790, 1508150), (13900, 1496215), (15190, 1369150), (15500, 1341767), (17236, 1206625), (17375, 1196972), (19306, 1077250), (19460, 1068725), (19700, 1055705), (21545, 965300), (21700, 958405), (24325, 854980), (24428, 851375), (24500, 848873), (24625, 844564), (27125, 766724), (27244, 763375), (27383, 759500), (27580, 754075), (30163, 689500), (30380, 684575), (30535, 681100), (34055, 610700), (34475, 603260), (34750, 598486), (37975, 547660), (38612, 538625), (42749, 486500), (43090, 482650), (48265, 430900), (48650, 427490), (49250, 422282), (54250, 383362), (54766, 379750), (60326, 344750), (61070, 340550), (68110, 305350), (68950, 301630), (69500, 299243), (75950, 273830), (85498, 243250), (86180, 241325), (96530, 215450), (97300, 213745), (98500, 211141), (107725, 193060), (108500, 191681), (109532, 189875), (120652, 172375), (121625, 170996), (122140, 170275), (136220, 152675), (136915, 151900), (137900, 150815)]