645767564

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{120569}}^1$

素因数の和:120689

約数の個数: 24

約数和(自身を含む): 1228849440

約数和(自身を除く): 583081876

約数列:

[1, 2, 4, 13, 26, 52, 103, 206, 412, 1339, 2678, 5356, 120569, 241138, 482276, 1567397, 3134794, 6269588, 12418607, 24837214, 49674428, 161441891, 322883782, 645767564]

約数ペア:

[(1, 645767564), (2, 322883782), (4, 161441891), (13, 49674428), (26, 24837214), (52, 12418607), (103, 6269588), (206, 3134794), (412, 1567397), (1339, 482276), (2678, 241138), (5356, 120569)]