20379490

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{33409}}^1$

素因数の和:33477

約数の個数: 16

約数和(自身を含む): 37285560

約数和(自身を除く): 16906070

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 33409, 66818, 167045, 334090, 2037949, 4075898, 10189745, 20379490]

約数ペア:

[(1, 20379490), (2, 10189745), (5, 4075898), (10, 2037949), (61, 334090), (122, 167045), (305, 66818), (610, 33409)]