31679180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{121843}}^1$

素因数の和:121865

約数の個数: 24

約数和(自身を含む): 71644272

約数和(自身を除く): 39965092

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 121843, 243686, 487372, 609215, 1218430, 1583959, 2436860, 3167918, 6335836, 7919795, 15839590, 31679180]

約数ペア:

[(1, 31679180), (2, 15839590), (4, 7919795), (5, 6335836), (10, 3167918), (13, 2436860), (20, 1583959), (26, 1218430), (52, 609215), (65, 487372), (130, 243686), (260, 121843)]