81369550

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{22921}}^1$

素因数の和:23004

約数の個数: 24

約数和(自身を含む): 153485712

約数和(自身を除く): 72116162

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 355, 710, 1775, 3550, 22921, 45842, 114605, 229210, 573025, 1146050, 1627391, 3254782, 8136955, 16273910, 40684775, 81369550]

約数ペア:

[(1, 81369550), (2, 40684775), (5, 16273910), (10, 8136955), (25, 3254782), (50, 1627391), (71, 1146050), (142, 573025), (355, 229210), (710, 114605), (1775, 45842), (3550, 22921)]