2020921000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:265

約数の個数: 256

約数和(自身を含む): 5702860800

約数和(自身を除く): 3681939800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 31, 35, 40, 50, 56, 62, 67, 70, 100, 124, 125, 134, 139, 140, 155, 175, 200, 217, 248, 250, 268, 278, 280, 310, 335, 350, 434, 469, 500, 536, 556, 620, 670, 695, 700, 775, 868, 875, 938, 973, 1000, 1085, 1112, 1240, 1340, 1390, 1400, 1550, 1675, 1736, 1750, 1876, 1946, 2077, 2170, 2345, 2680, 2780, 3100, 3350, 3475, 3500, 3752, 3875, 3892, 4154, 4309, 4340, 4690, 4865, 5425, 5560, 6200, 6700, 6950, 7000, 7750, 7784, 8308, 8375, 8618, 8680, 9313, 9380, 9730, 10385, 10850, 11725, 13400, 13900, 14539, 15500, 16616, 16750, 17236, 17375, 18626, 18760, 19460, 20770, 21545, 21700, 23450, 24325, 27125, 27800, 29078, 30163, 31000, 33500, 34472, 34750, 37252, 38920, 41540, 43090, 43400, 46565, 46900, 48650, 51925, 54250, 58156, 58625, 60326, 65191, 67000, 69500, 72695, 74504, 83080, 86180, 93130, 93800, 97300, 103850, 107725, 108500, 116312, 117250, 120652, 121625, 130382, 139000, 145390, 150815, 172360, 186260, 194600, 207700, 215450, 217000, 232825, 234500, 241304, 243250, 259625, 260764, 288703, 290780, 301630, 325955, 363475, 372520, 415400, 430900, 465650, 469000, 486500, 519250, 521528, 538625, 577406, 581560, 603260, 651910, 726950, 754075, 861800, 931300, 973000, 1038500, 1077250, 1154812, 1164125, 1206520, 1303820, 1443515, 1453900, 1508150, 1629775, 1817375, 1862600, 2020921, 2077000, 2154500, 2309624, 2328250, 2607640, 2887030, 2907800, 3016300, 3259550, 3634750, 3770375, 4041842, 4309000, 4656500, 5774060, 6032600, 6519100, 7217575, 7269500, 7540750, 8083684, 8148875, 9313000, 10104605, 11548120, 13038200, 14435150, 14539000, 15081500, 16167368, 16297750, 20209210, 28870300, 30163000, 32595500, 36087875, 40418420, 50523025, 57740600, 65191000, 72175750, 80836840, 101046050, 144351500, 202092100, 252615125, 288703000, 404184200, 505230250, 1010460500, 2020921000]

約数ペア:

[(1, 2020921000), (2, 1010460500), (4, 505230250), (5, 404184200), (7, 288703000), (8, 252615125), (10, 202092100), (14, 144351500), (20, 101046050), (25, 80836840), (28, 72175750), (31, 65191000), (35, 57740600), (40, 50523025), (50, 40418420), (56, 36087875), (62, 32595500), (67, 30163000), (70, 28870300), (100, 20209210), (124, 16297750), (125, 16167368), (134, 15081500), (139, 14539000), (140, 14435150), (155, 13038200), (175, 11548120), (200, 10104605), (217, 9313000), (248, 8148875), (250, 8083684), (268, 7540750), (278, 7269500), (280, 7217575), (310, 6519100), (335, 6032600), (350, 5774060), (434, 4656500), (469, 4309000), (500, 4041842), (536, 3770375), (556, 3634750), (620, 3259550), (670, 3016300), (695, 2907800), (700, 2887030), (775, 2607640), (868, 2328250), (875, 2309624), (938, 2154500), (973, 2077000), (1000, 2020921), (1085, 1862600), (1112, 1817375), (1240, 1629775), (1340, 1508150), (1390, 1453900), (1400, 1443515), (1550, 1303820), (1675, 1206520), (1736, 1164125), (1750, 1154812), (1876, 1077250), (1946, 1038500), (2077, 973000), (2170, 931300), (2345, 861800), (2680, 754075), (2780, 726950), (3100, 651910), (3350, 603260), (3475, 581560), (3500, 577406), (3752, 538625), (3875, 521528), (3892, 519250), (4154, 486500), (4309, 469000), (4340, 465650), (4690, 430900), (4865, 415400), (5425, 372520), (5560, 363475), (6200, 325955), (6700, 301630), (6950, 290780), (7000, 288703), (7750, 260764), (7784, 259625), (8308, 243250), (8375, 241304), (8618, 234500), (8680, 232825), (9313, 217000), (9380, 215450), (9730, 207700), (10385, 194600), (10850, 186260), (11725, 172360), (13400, 150815), (13900, 145390), (14539, 139000), (15500, 130382), (16616, 121625), (16750, 120652), (17236, 117250), (17375, 116312), (18626, 108500), (18760, 107725), (19460, 103850), (20770, 97300), (21545, 93800), (21700, 93130), (23450, 86180), (24325, 83080), (27125, 74504), (27800, 72695), (29078, 69500), (30163, 67000), (31000, 65191), (33500, 60326), (34472, 58625), (34750, 58156), (37252, 54250), (38920, 51925), (41540, 48650), (43090, 46900), (43400, 46565)]