145239280

素因数分解:

$2^4\times 5^1\times {\mathrm{1815491}}^1$

素因数の和:1815504

約数の個数: 20

約数和(自身を含む): 337681512

約数和(自身を除く): 192442232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1815491, 3630982, 7261964, 9077455, 14523928, 18154910, 29047856, 36309820, 72619640, 145239280]

約数ペア:

[(1, 145239280), (2, 72619640), (4, 36309820), (5, 29047856), (8, 18154910), (10, 14523928), (16, 9077455), (20, 7261964), (40, 3630982), (80, 1815491)]