129628580

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{35809}}^1$

素因数の和:35999

約数の個数: 24

約数和(自身を含む): 273731640

約数和(自身を除く): 144103060

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 35809, 71618, 143236, 179045, 358090, 716180, 6481429, 12962858, 25925716, 32407145, 64814290, 129628580]

約数ペア:

[(1, 129628580), (2, 64814290), (4, 32407145), (5, 25925716), (10, 12962858), (20, 6481429), (181, 716180), (362, 358090), (724, 179045), (905, 143236), (1810, 71618), (3620, 35809)]