31547860

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{487}}^1$

素因数の和:616

約数の個数: 48

約数和(自身を含む): 68866560

約数和(自身を除く): 37318700

約数列:

[1, 2, 4, 5, 10, 20, 41, 79, 82, 158, 164, 205, 316, 395, 410, 487, 790, 820, 974, 1580, 1948, 2435, 3239, 4870, 6478, 9740, 12956, 16195, 19967, 32390, 38473, 39934, 64780, 76946, 79868, 99835, 153892, 192365, 199670, 384730, 399340, 769460, 1577393, 3154786, 6309572, 7886965, 15773930, 31547860]

約数ペア:

[(1, 31547860), (2, 15773930), (4, 7886965), (5, 6309572), (10, 3154786), (20, 1577393), (41, 769460), (79, 399340), (82, 384730), (158, 199670), (164, 192365), (205, 153892), (316, 99835), (395, 79868), (410, 76946), (487, 64780), (790, 39934), (820, 38473), (974, 32390), (1580, 19967), (1948, 16195), (2435, 12956), (3239, 9740), (4870, 6478)]