18445232

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1249}}^1$

素因数の和:1341

約数の個数: 40

約数和(自身を含む): 39060000

約数和(自身を除く): 20614768

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 71, 104, 142, 208, 284, 568, 923, 1136, 1249, 1846, 2498, 3692, 4996, 7384, 9992, 14768, 16237, 19984, 32474, 64948, 88679, 129896, 177358, 259792, 354716, 709432, 1152827, 1418864, 2305654, 4611308, 9222616, 18445232]

約数ペア:

[(1, 18445232), (2, 9222616), (4, 4611308), (8, 2305654), (13, 1418864), (16, 1152827), (26, 709432), (52, 354716), (71, 259792), (104, 177358), (142, 129896), (208, 88679), (284, 64948), (568, 32474), (923, 19984), (1136, 16237), (1249, 14768), (1846, 9992), (2498, 7384), (3692, 4996)]