20459940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{340999}}^1$

素因数の和:341011

約数の個数: 24

約数和(自身を含む): 57288000

約数和(自身を除く): 36828060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 340999, 681998, 1022997, 1363996, 1704995, 2045994, 3409990, 4091988, 5114985, 6819980, 10229970, 20459940]

約数ペア:

[(1, 20459940), (2, 10229970), (3, 6819980), (4, 5114985), (5, 4091988), (6, 3409990), (10, 2045994), (12, 1704995), (15, 1363996), (20, 1022997), (30, 681998), (60, 340999)]