31275500

素因数分解:

$2^2\times 5^3\times {\mathrm{71}}^1\times {\mathrm{881}}^1$

素因数の和:971

約数の個数: 48

約数和(自身を含む): 69346368

約数和(自身を除く): 38070868

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 125, 142, 250, 284, 355, 500, 710, 881, 1420, 1762, 1775, 3524, 3550, 4405, 7100, 8810, 8875, 17620, 17750, 22025, 35500, 44050, 62551, 88100, 110125, 125102, 220250, 250204, 312755, 440500, 625510, 1251020, 1563775, 3127550, 6255100, 7818875, 15637750, 31275500]

約数ペア:

[(1, 31275500), (2, 15637750), (4, 7818875), (5, 6255100), (10, 3127550), (20, 1563775), (25, 1251020), (50, 625510), (71, 440500), (100, 312755), (125, 250204), (142, 220250), (250, 125102), (284, 110125), (355, 88100), (500, 62551), (710, 44050), (881, 35500), (1420, 22025), (1762, 17750), (1775, 17620), (3524, 8875), (3550, 8810), (4405, 7100)]