18481780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{15149}}^1$

素因数の和:15219

約数の個数: 24

約数和(自身を含む): 39450600

約数和(自身を除く): 20968820

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 15149, 30298, 60596, 75745, 151490, 302980, 924089, 1848178, 3696356, 4620445, 9240890, 18481780]

約数ペア:

[(1, 18481780), (2, 9240890), (4, 4620445), (5, 3696356), (10, 1848178), (20, 924089), (61, 302980), (122, 151490), (244, 75745), (305, 60596), (610, 30298), (1220, 15149)]