3993400

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{487}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 9530640

約数和(自身を除く): 5537240

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 410, 487, 820, 974, 1025, 1640, 1948, 2050, 2435, 3896, 4100, 4870, 8200, 9740, 12175, 19480, 19967, 24350, 39934, 48700, 79868, 97400, 99835, 159736, 199670, 399340, 499175, 798680, 998350, 1996700, 3993400]

約数ペア:

[(1, 3993400), (2, 1996700), (4, 998350), (5, 798680), (8, 499175), (10, 399340), (20, 199670), (25, 159736), (40, 99835), (41, 97400), (50, 79868), (82, 48700), (100, 39934), (164, 24350), (200, 19967), (205, 19480), (328, 12175), (410, 9740), (487, 8200), (820, 4870), (974, 4100), (1025, 3896), (1640, 2435), (1948, 2050)]