251686136

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{65407}}^1$

素因数の和:65463

約数の個数: 32

約数和(自身を含む): 521955840

約数和(自身を除く): 270269704

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 104, 148, 296, 481, 962, 1924, 3848, 65407, 130814, 261628, 523256, 850291, 1700582, 2420059, 3401164, 4840118, 6802328, 9680236, 19360472, 31460767, 62921534, 125843068, 251686136]

約数ペア:

[(1, 251686136), (2, 125843068), (4, 62921534), (8, 31460767), (13, 19360472), (26, 9680236), (37, 6802328), (52, 4840118), (74, 3401164), (104, 2420059), (148, 1700582), (296, 850291), (481, 523256), (962, 261628), (1924, 130814), (3848, 65407)]