156686000

素因数分解:

$2^4\times 5^3\times {\mathrm{157}}^1\times {\mathrm{499}}^1$

素因数の和:679

約数の個数: 80

約数和(自身を含む): 382044000

約数和(自身を除く): 225358000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 157, 200, 250, 314, 400, 499, 500, 628, 785, 998, 1000, 1256, 1570, 1996, 2000, 2495, 2512, 3140, 3925, 3992, 4990, 6280, 7850, 7984, 9980, 12475, 12560, 15700, 19625, 19960, 24950, 31400, 39250, 39920, 49900, 62375, 62800, 78343, 78500, 99800, 124750, 156686, 157000, 199600, 249500, 313372, 314000, 391715, 499000, 626744, 783430, 998000, 1253488, 1566860, 1958575, 3133720, 3917150, 6267440, 7834300, 9792875, 15668600, 19585750, 31337200, 39171500, 78343000, 156686000]

約数ペア:

[(1, 156686000), (2, 78343000), (4, 39171500), (5, 31337200), (8, 19585750), (10, 15668600), (16, 9792875), (20, 7834300), (25, 6267440), (40, 3917150), (50, 3133720), (80, 1958575), (100, 1566860), (125, 1253488), (157, 998000), (200, 783430), (250, 626744), (314, 499000), (400, 391715), (499, 314000), (500, 313372), (628, 249500), (785, 199600), (998, 157000), (1000, 156686), (1256, 124750), (1570, 99800), (1996, 78500), (2000, 78343), (2495, 62800), (2512, 62375), (3140, 49900), (3925, 39920), (3992, 39250), (4990, 31400), (6280, 24950), (7850, 19960), (7984, 19625), (9980, 15700), (12475, 12560)]