40130578

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{499}}^1\times {\mathrm{509}}^1$

素因数の和:1089

約数の個数: 16

約数和(自身を含む): 61200000

約数和(自身を除く): 21069422

約数列:

[1, 2, 79, 158, 499, 509, 998, 1018, 39421, 40211, 78842, 80422, 253991, 507982, 20065289, 40130578]

約数ペア:

[(1, 40130578), (2, 20065289), (79, 507982), (158, 253991), (499, 80422), (509, 78842), (998, 40211), (1018, 39421)]