21891775000

素因数分解:

$2^3\times 5^5\times {\mathrm{89}}^1\times {\mathrm{9839}}^1$

素因数の和:9959

約数の個数: 96

約数和(自身を含む): 51887304000

約数和(自身を除く): 29995529000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 89, 100, 125, 178, 200, 250, 356, 445, 500, 625, 712, 890, 1000, 1250, 1780, 2225, 2500, 3125, 3560, 4450, 5000, 6250, 8900, 9839, 11125, 12500, 17800, 19678, 22250, 25000, 39356, 44500, 49195, 55625, 78712, 89000, 98390, 111250, 196780, 222500, 245975, 278125, 393560, 445000, 491950, 556250, 875671, 983900, 1112500, 1229875, 1751342, 1967800, 2225000, 2459750, 3502684, 4378355, 4919500, 6149375, 7005368, 8756710, 9839000, 12298750, 17513420, 21891775, 24597500, 30746875, 35026840, 43783550, 49195000, 61493750, 87567100, 109458875, 122987500, 175134200, 218917750, 245975000, 437835500, 547294375, 875671000, 1094588750, 2189177500, 2736471875, 4378355000, 5472943750, 10945887500, 21891775000]

約数ペア:

[(1, 21891775000), (2, 10945887500), (4, 5472943750), (5, 4378355000), (8, 2736471875), (10, 2189177500), (20, 1094588750), (25, 875671000), (40, 547294375), (50, 437835500), (89, 245975000), (100, 218917750), (125, 175134200), (178, 122987500), (200, 109458875), (250, 87567100), (356, 61493750), (445, 49195000), (500, 43783550), (625, 35026840), (712, 30746875), (890, 24597500), (1000, 21891775), (1250, 17513420), (1780, 12298750), (2225, 9839000), (2500, 8756710), (3125, 7005368), (3560, 6149375), (4450, 4919500), (5000, 4378355), (6250, 3502684), (8900, 2459750), (9839, 2225000), (11125, 1967800), (12500, 1751342), (17800, 1229875), (19678, 1112500), (22250, 983900), (25000, 875671), (39356, 556250), (44500, 491950), (49195, 445000), (55625, 393560), (78712, 278125), (89000, 245975), (98390, 222500), (111250, 196780)]