15990416

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1303}}^1$

素因数の和:1383

約数の個数: 40

約数和(自身を含む): 33956160

約数和(自身を除く): 17965744

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 59, 104, 118, 208, 236, 472, 767, 944, 1303, 1534, 2606, 3068, 5212, 6136, 10424, 12272, 16939, 20848, 33878, 67756, 76877, 135512, 153754, 271024, 307508, 615016, 999401, 1230032, 1998802, 3997604, 7995208, 15990416]

約数ペア:

[(1, 15990416), (2, 7995208), (4, 3997604), (8, 1998802), (13, 1230032), (16, 999401), (26, 615016), (52, 307508), (59, 271024), (104, 153754), (118, 135512), (208, 76877), (236, 67756), (472, 33878), (767, 20848), (944, 16939), (1303, 12272), (1534, 10424), (2606, 6136), (3068, 5212)]