16718780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{64303}}^1$

素因数の和:64325

約数の個数: 24

約数和(自身を含む): 37810752

約数和(自身を除く): 21091972

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 64303, 128606, 257212, 321515, 643030, 835939, 1286060, 1671878, 3343756, 4179695, 8359390, 16718780]

約数ペア:

[(1, 16718780), (2, 8359390), (4, 4179695), (5, 3343756), (10, 1671878), (13, 1286060), (20, 835939), (26, 643030), (52, 321515), (65, 257212), (130, 128606), (260, 64303)]