1397440

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1$

素因数の和:425

約数の個数: 56

約数和(自身を含む): 3639312

約数和(自身を除く): 2241872

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 397, 440, 704, 794, 880, 1588, 1760, 1985, 3176, 3520, 3970, 4367, 6352, 7940, 8734, 12704, 15880, 17468, 21835, 25408, 31760, 34936, 43670, 63520, 69872, 87340, 127040, 139744, 174680, 279488, 349360, 698720, 1397440]

約数ペア:

[(1, 1397440), (2, 698720), (4, 349360), (5, 279488), (8, 174680), (10, 139744), (11, 127040), (16, 87340), (20, 69872), (22, 63520), (32, 43670), (40, 34936), (44, 31760), (55, 25408), (64, 21835), (80, 17468), (88, 15880), (110, 12704), (160, 8734), (176, 7940), (220, 6352), (320, 4367), (352, 3970), (397, 3520), (440, 3176), (704, 1985), (794, 1760), (880, 1588)]