40459220

素因数分解:

$2^2\times 5^1\times {\mathrm{1013}}^1\times {\mathrm{1997}}^1$

素因数の和:3019

約数の個数: 24

約数和(自身を含む): 85090824

約数和(自身を除く): 44631604

約数列:

[1, 2, 4, 5, 10, 20, 1013, 1997, 2026, 3994, 4052, 5065, 7988, 9985, 10130, 19970, 20260, 39940, 2022961, 4045922, 8091844, 10114805, 20229610, 40459220]

約数ペア:

[(1, 40459220), (2, 20229610), (4, 10114805), (5, 8091844), (10, 4045922), (20, 2022961), (1013, 39940), (1997, 20260), (2026, 19970), (3994, 10130), (4052, 9985), (5065, 7988)]