20015528

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{11321}}^1$

素因数の和:11357

約数の個数: 32

約数和(自身を含む): 42797160

約数和(自身を除く): 22781632

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 11321, 22642, 45284, 90568, 147173, 192457, 294346, 384914, 588692, 769828, 1177384, 1539656, 2501941, 5003882, 10007764, 20015528]

約数ペア:

[(1, 20015528), (2, 10007764), (4, 5003882), (8, 2501941), (13, 1539656), (17, 1177384), (26, 769828), (34, 588692), (52, 384914), (68, 294346), (104, 192457), (136, 147173), (221, 90568), (442, 45284), (884, 22642), (1768, 11321)]