21489000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:85

約数の個数: 256

約数和(自身を含む): 78624000

約数和(自身を除く): 57135000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 19, 20, 24, 25, 26, 29, 30, 38, 39, 40, 50, 52, 57, 58, 60, 65, 75, 76, 78, 87, 95, 100, 104, 114, 116, 120, 125, 130, 145, 150, 152, 156, 174, 190, 195, 200, 228, 232, 247, 250, 260, 285, 290, 300, 312, 325, 348, 375, 377, 380, 390, 435, 456, 475, 494, 500, 520, 551, 570, 580, 600, 650, 696, 725, 741, 750, 754, 760, 780, 870, 950, 975, 988, 1000, 1102, 1131, 1140, 1160, 1235, 1300, 1425, 1450, 1482, 1500, 1508, 1560, 1625, 1653, 1740, 1885, 1900, 1950, 1976, 2175, 2204, 2262, 2280, 2375, 2470, 2600, 2755, 2850, 2900, 2964, 3000, 3016, 3250, 3306, 3480, 3625, 3705, 3770, 3800, 3900, 4350, 4408, 4524, 4750, 4875, 4940, 5510, 5655, 5700, 5800, 5928, 6175, 6500, 6612, 7125, 7163, 7250, 7410, 7540, 7800, 8265, 8700, 9048, 9425, 9500, 9750, 9880, 10875, 11020, 11310, 11400, 12350, 13000, 13224, 13775, 14250, 14326, 14500, 14820, 15080, 16530, 17400, 18525, 18850, 19000, 19500, 21489, 21750, 22040, 22620, 24700, 27550, 28275, 28500, 28652, 29000, 29640, 30875, 33060, 35815, 37050, 37700, 39000, 41325, 42978, 43500, 45240, 47125, 49400, 55100, 56550, 57000, 57304, 61750, 66120, 68875, 71630, 74100, 75400, 82650, 85956, 87000, 92625, 94250, 107445, 110200, 113100, 123500, 137750, 141375, 143260, 148200, 165300, 171912, 179075, 185250, 188500, 206625, 214890, 226200, 247000, 275500, 282750, 286520, 330600, 358150, 370500, 377000, 413250, 429780, 537225, 551000, 565500, 716300, 741000, 826500, 859560, 895375, 1074450, 1131000, 1432600, 1653000, 1790750, 2148900, 2686125, 3581500, 4297800, 5372250, 7163000, 10744500, 21489000]

約数ペア:

[(1, 21489000), (2, 10744500), (3, 7163000), (4, 5372250), (5, 4297800), (6, 3581500), (8, 2686125), (10, 2148900), (12, 1790750), (13, 1653000), (15, 1432600), (19, 1131000), (20, 1074450), (24, 895375), (25, 859560), (26, 826500), (29, 741000), (30, 716300), (38, 565500), (39, 551000), (40, 537225), (50, 429780), (52, 413250), (57, 377000), (58, 370500), (60, 358150), (65, 330600), (75, 286520), (76, 282750), (78, 275500), (87, 247000), (95, 226200), (100, 214890), (104, 206625), (114, 188500), (116, 185250), (120, 179075), (125, 171912), (130, 165300), (145, 148200), (150, 143260), (152, 141375), (156, 137750), (174, 123500), (190, 113100), (195, 110200), (200, 107445), (228, 94250), (232, 92625), (247, 87000), (250, 85956), (260, 82650), (285, 75400), (290, 74100), (300, 71630), (312, 68875), (325, 66120), (348, 61750), (375, 57304), (377, 57000), (380, 56550), (390, 55100), (435, 49400), (456, 47125), (475, 45240), (494, 43500), (500, 42978), (520, 41325), (551, 39000), (570, 37700), (580, 37050), (600, 35815), (650, 33060), (696, 30875), (725, 29640), (741, 29000), (750, 28652), (754, 28500), (760, 28275), (780, 27550), (870, 24700), (950, 22620), (975, 22040), (988, 21750), (1000, 21489), (1102, 19500), (1131, 19000), (1140, 18850), (1160, 18525), (1235, 17400), (1300, 16530), (1425, 15080), (1450, 14820), (1482, 14500), (1500, 14326), (1508, 14250), (1560, 13775), (1625, 13224), (1653, 13000), (1740, 12350), (1885, 11400), (1900, 11310), (1950, 11020), (1976, 10875), (2175, 9880), (2204, 9750), (2262, 9500), (2280, 9425), (2375, 9048), (2470, 8700), (2600, 8265), (2755, 7800), (2850, 7540), (2900, 7410), (2964, 7250), (3000, 7163), (3016, 7125), (3250, 6612), (3306, 6500), (3480, 6175), (3625, 5928), (3705, 5800), (3770, 5700), (3800, 5655), (3900, 5510), (4350, 4940), (4408, 4875), (4524, 4750)]