20361328

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1847}}^1$

素因数の和:1921

約数の個数: 40

約数和(自身を含む): 43309728

約数和(自身を除く): 22948400

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 53, 104, 106, 208, 212, 424, 689, 848, 1378, 1847, 2756, 3694, 5512, 7388, 11024, 14776, 24011, 29552, 48022, 96044, 97891, 192088, 195782, 384176, 391564, 783128, 1272583, 1566256, 2545166, 5090332, 10180664, 20361328]

約数ペア:

[(1, 20361328), (2, 10180664), (4, 5090332), (8, 2545166), (13, 1566256), (16, 1272583), (26, 783128), (52, 391564), (53, 384176), (104, 195782), (106, 192088), (208, 97891), (212, 96044), (424, 48022), (689, 29552), (848, 24011), (1378, 14776), (1847, 11024), (2756, 7388), (3694, 5512)]