30938980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{90997}}^1$

素因数の和:91023

約数の個数: 24

約数和(自身を含む): 68794488

約数和(自身を除く): 37855508

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 90997, 181994, 363988, 454985, 909970, 1546949, 1819940, 3093898, 6187796, 7734745, 15469490, 30938980]

約数ペア:

[(1, 30938980), (2, 15469490), (4, 7734745), (5, 6187796), (10, 3093898), (17, 1819940), (20, 1546949), (34, 909970), (68, 454985), (85, 363988), (170, 181994), (340, 90997)]