320460620

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{51521}}^1$

素因数の和:51841

約数の個数: 24

約数和(自身を含む): 675144288

約数和(自身を除く): 354683668

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 6220, 51521, 103042, 206084, 257605, 515210, 1030420, 16023031, 32046062, 64092124, 80115155, 160230310, 320460620]

約数ペア:

[(1, 320460620), (2, 160230310), (4, 80115155), (5, 64092124), (10, 32046062), (20, 16023031), (311, 1030420), (622, 515210), (1244, 257605), (1555, 206084), (3110, 103042), (6220, 51521)]