81299530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{1451}}^1$

素因数の和:1902

約数の個数: 32

約数和(自身を含む): 158070528

約数和(自身を除く): 76770998

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 431, 862, 1451, 2155, 2902, 4310, 5603, 7255, 11206, 14510, 18863, 28015, 37726, 56030, 94315, 188630, 625381, 1250762, 3126905, 6253810, 8129953, 16259906, 40649765, 81299530]

約数ペア:

[(1, 81299530), (2, 40649765), (5, 16259906), (10, 8129953), (13, 6253810), (26, 3126905), (65, 1250762), (130, 625381), (431, 188630), (862, 94315), (1451, 56030), (2155, 37726), (2902, 28015), (4310, 18863), (5603, 14510), (7255, 11206)]