645344908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{64303}}^1$

素因数の和:64513

約数の個数: 24

約数和(自身を含む): 1222547648

約数和(自身を除く): 577202740

約数列:

[1, 2, 4, 13, 26, 52, 193, 386, 772, 2509, 5018, 10036, 64303, 128606, 257212, 835939, 1671878, 3343756, 12410479, 24820958, 49641916, 161336227, 322672454, 645344908]

約数ペア:

[(1, 645344908), (2, 322672454), (4, 161336227), (13, 49641916), (26, 24820958), (52, 12410479), (193, 3343756), (386, 1671878), (772, 835939), (2509, 257212), (5018, 128606), (10036, 64303)]