40459940

素因数分解:

$2^2\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{1567}}^1$

素因数の和:2867

約数の個数: 24

約数和(自身を含む): 85085952

約数和(自身を除く): 44626012

約数列:

[1, 2, 4, 5, 10, 20, 1291, 1567, 2582, 3134, 5164, 6268, 6455, 7835, 12910, 15670, 25820, 31340, 2022997, 4045994, 8091988, 10114985, 20229970, 40459940]

約数ペア:

[(1, 40459940), (2, 20229970), (4, 10114985), (5, 8091988), (10, 4045994), (20, 2022997), (1291, 31340), (1567, 25820), (2582, 15670), (3134, 12910), (5164, 7835), (6268, 6455)]