72547240

素因数分解:

$2^3\times 5^1\times {\mathrm{1813681}}^1$

素因数の和:1813692

約数の個数: 16

約数和(自身を含む): 163231380

約数和(自身を除く): 90684140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1813681, 3627362, 7254724, 9068405, 14509448, 18136810, 36273620, 72547240]

約数ペア:

[(1, 72547240), (2, 36273620), (4, 18136810), (5, 14509448), (8, 9068405), (10, 7254724), (20, 3627362), (40, 1813681)]