1538139640

素因数分解:

$2^3\times 5^1\times {\mathrm{1609}}^1\times {\mathrm{23899}}^1$

素因数の和:25519

約数の個数: 32

約数和(自身を含む): 3463110000

約数和(自身を除く): 1924970360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1609, 3218, 6436, 8045, 12872, 16090, 23899, 32180, 47798, 64360, 95596, 119495, 191192, 238990, 477980, 955960, 38453491, 76906982, 153813964, 192267455, 307627928, 384534910, 769069820, 1538139640]

約数ペア:

[(1, 1538139640), (2, 769069820), (4, 384534910), (5, 307627928), (8, 192267455), (10, 153813964), (20, 76906982), (40, 38453491), (1609, 955960), (3218, 477980), (6436, 238990), (8045, 191192), (12872, 119495), (16090, 95596), (23899, 64360), (32180, 47798)]