2405420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2797}}^1$

素因数の和:2849

約数の個数: 24

約数和(自身を含む): 5170704

約数和(自身を除く): 2765284

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 2797, 5594, 11188, 13985, 27970, 55940, 120271, 240542, 481084, 601355, 1202710, 2405420]

約数ペア:

[(1, 2405420), (2, 1202710), (4, 601355), (5, 481084), (10, 240542), (20, 120271), (43, 55940), (86, 27970), (172, 13985), (215, 11188), (430, 5594), (860, 2797)]