168409820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{495323}}^1$

素因数の和:495349

約数の個数: 24

約数和(自身を含む): 374464944

約数和(自身を除く): 206055124

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 495323, 990646, 1981292, 2476615, 4953230, 8420491, 9906460, 16840982, 33681964, 42102455, 84204910, 168409820]

約数ペア:

[(1, 168409820), (2, 84204910), (4, 42102455), (5, 33681964), (10, 16840982), (17, 9906460), (20, 8420491), (34, 4953230), (68, 2476615), (85, 1981292), (170, 990646), (340, 495323)]