1297179640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{531631}}^1$

素因数の和:531703

約数の個数: 32

約数和(自身を含む): 2966506560

約数和(自身を除く): 1669326920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 531631, 1063262, 2126524, 2658155, 4253048, 5316310, 10632620, 21265240, 32429491, 64858982, 129717964, 162147455, 259435928, 324294910, 648589820, 1297179640]

約数ペア:

[(1, 1297179640), (2, 648589820), (4, 324294910), (5, 259435928), (8, 162147455), (10, 129717964), (20, 64858982), (40, 32429491), (61, 21265240), (122, 10632620), (244, 5316310), (305, 4253048), (488, 2658155), (610, 2126524), (1220, 1063262), (2440, 531631)]