20019490

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{64579}}^1$

素因数の和:64617

約数の個数: 16

約数和(自身を含む): 37198080

約数和(自身を除く): 17178590

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 64579, 129158, 322895, 645790, 2001949, 4003898, 10009745, 20019490]

約数ペア:

[(1, 20019490), (2, 10009745), (5, 4003898), (10, 2001949), (31, 645790), (62, 322895), (155, 129158), (310, 64579)]