396173860

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{144589}}^1$

素因数の和:144735

約数の個数: 24

約数和(自身を含む): 838043640

約数和(自身を除く): 441869780

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 144589, 289178, 578356, 722945, 1445890, 2891780, 19808693, 39617386, 79234772, 99043465, 198086930, 396173860]

約数ペア:

[(1, 396173860), (2, 198086930), (4, 99043465), (5, 79234772), (10, 39617386), (20, 19808693), (137, 2891780), (274, 1445890), (548, 722945), (685, 578356), (1370, 289178), (2740, 144589)]