31987340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20771}}^1$

素因数の和:20798

約数の個数: 48

約数和(自身を含む): 83752704

約数和(自身を除く): 51765364

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 20771, 41542, 83084, 103855, 145397, 207710, 228481, 290794, 415420, 456962, 581588, 726985, 913924, 1142405, 1453970, 1599367, 2284810, 2907940, 3198734, 4569620, 6397468, 7996835, 15993670, 31987340]

約数ペア:

[(1, 31987340), (2, 15993670), (4, 7996835), (5, 6397468), (7, 4569620), (10, 3198734), (11, 2907940), (14, 2284810), (20, 1599367), (22, 1453970), (28, 1142405), (35, 913924), (44, 726985), (55, 581588), (70, 456962), (77, 415420), (110, 290794), (140, 228481), (154, 207710), (220, 145397), (308, 103855), (385, 83084), (770, 41542), (1540, 20771)]