20187943000

素因数分解:

$2^3\times 5^3\times {\mathrm{139}}^1\times {\mathrm{311}}^1\times {\mathrm{467}}^1$

素因数の和:938

約数の個数: 128

約数和(自身を含む): 47834841600

約数和(自身を除く): 27646898600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 139, 200, 250, 278, 311, 467, 500, 556, 622, 695, 934, 1000, 1112, 1244, 1390, 1555, 1868, 2335, 2488, 2780, 3110, 3475, 3736, 4670, 5560, 6220, 6950, 7775, 9340, 11675, 12440, 13900, 15550, 17375, 18680, 23350, 27800, 31100, 34750, 38875, 43229, 46700, 58375, 62200, 64913, 69500, 77750, 86458, 93400, 116750, 129826, 139000, 145237, 155500, 172916, 216145, 233500, 259652, 290474, 311000, 324565, 345832, 432290, 467000, 519304, 580948, 649130, 726185, 864580, 1080725, 1161896, 1298260, 1452370, 1622825, 1729160, 2161450, 2596520, 2904740, 3245650, 3630925, 4322900, 5403625, 5809480, 6491300, 7261850, 8114125, 8645800, 10807250, 12982600, 14523700, 16228250, 18154625, 20187943, 21614500, 29047400, 32456500, 36309250, 40375886, 43229000, 64913000, 72618500, 80751772, 100939715, 145237000, 161503544, 201879430, 403758860, 504698575, 807517720, 1009397150, 2018794300, 2523492875, 4037588600, 5046985750, 10093971500, 20187943000]

約数ペア:

[(1, 20187943000), (2, 10093971500), (4, 5046985750), (5, 4037588600), (8, 2523492875), (10, 2018794300), (20, 1009397150), (25, 807517720), (40, 504698575), (50, 403758860), (100, 201879430), (125, 161503544), (139, 145237000), (200, 100939715), (250, 80751772), (278, 72618500), (311, 64913000), (467, 43229000), (500, 40375886), (556, 36309250), (622, 32456500), (695, 29047400), (934, 21614500), (1000, 20187943), (1112, 18154625), (1244, 16228250), (1390, 14523700), (1555, 12982600), (1868, 10807250), (2335, 8645800), (2488, 8114125), (2780, 7261850), (3110, 6491300), (3475, 5809480), (3736, 5403625), (4670, 4322900), (5560, 3630925), (6220, 3245650), (6950, 2904740), (7775, 2596520), (9340, 2161450), (11675, 1729160), (12440, 1622825), (13900, 1452370), (15550, 1298260), (17375, 1161896), (18680, 1080725), (23350, 864580), (27800, 726185), (31100, 649130), (34750, 580948), (38875, 519304), (43229, 467000), (46700, 432290), (58375, 345832), (62200, 324565), (64913, 311000), (69500, 290474), (77750, 259652), (86458, 233500), (93400, 216145), (116750, 172916), (129826, 155500), (139000, 145237)]