31908880

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2447}}^1$

素因数の和:2623

約数の個数: 40

約数和(自身を含む): 74673792

約数和(自身を除く): 42764912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2447, 2608, 3260, 4894, 6520, 9788, 12235, 13040, 19576, 24470, 39152, 48940, 97880, 195760, 398861, 797722, 1595444, 1994305, 3190888, 3988610, 6381776, 7977220, 15954440, 31908880]

約数ペア:

[(1, 31908880), (2, 15954440), (4, 7977220), (5, 6381776), (8, 3988610), (10, 3190888), (16, 1994305), (20, 1595444), (40, 797722), (80, 398861), (163, 195760), (326, 97880), (652, 48940), (815, 39152), (1304, 24470), (1630, 19576), (2447, 13040), (2608, 12235), (3260, 9788), (4894, 6520)]