81294560

素因数分解:

$2^5\times 5^1\times {\mathrm{508091}}^1$

素因数の和:508106

約数の個数: 24

約数和(自身を含む): 192058776

約数和(自身を除く): 110764216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 508091, 1016182, 2032364, 2540455, 4064728, 5080910, 8129456, 10161820, 16258912, 20323640, 40647280, 81294560]

約数ペア:

[(1, 81294560), (2, 40647280), (4, 20323640), (5, 16258912), (8, 10161820), (10, 8129456), (16, 5080910), (20, 4064728), (32, 2540455), (40, 2032364), (80, 1016182), (160, 508091)]