81850288

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{6451}}^1$

素因数の和:6533

約数の個数: 40

約数和(自身を含む): 173610416

約数和(自身を除く): 91760128

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 61, 104, 122, 208, 244, 488, 793, 976, 1586, 3172, 6344, 6451, 12688, 12902, 25804, 51608, 83863, 103216, 167726, 335452, 393511, 670904, 787022, 1341808, 1574044, 3148088, 5115643, 6296176, 10231286, 20462572, 40925144, 81850288]

約数ペア:

[(1, 81850288), (2, 40925144), (4, 20462572), (8, 10231286), (13, 6296176), (16, 5115643), (26, 3148088), (52, 1574044), (61, 1341808), (104, 787022), (122, 670904), (208, 393511), (244, 335452), (488, 167726), (793, 103216), (976, 83863), (1586, 51608), (3172, 25804), (6344, 12902), (6451, 12688)]