18620780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{54767}}^1$

素因数の和:54793

約数の個数: 24

約数和(自身を含む): 41404608

約数和(自身を除く): 22783828

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 54767, 109534, 219068, 273835, 547670, 931039, 1095340, 1862078, 3724156, 4655195, 9310390, 18620780]

約数ペア:

[(1, 18620780), (2, 9310390), (4, 4655195), (5, 3724156), (10, 1862078), (17, 1095340), (20, 931039), (34, 547670), (68, 273835), (85, 219068), (170, 109534), (340, 54767)]