15860020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{72091}}^1$

素因数の和:72111

約数の個数: 24

約数和(自身を含む): 36334368

約数和(自身を除く): 20474348

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 72091, 144182, 288364, 360455, 720910, 793001, 1441820, 1586002, 3172004, 3965005, 7930010, 15860020]

約数ペア:

[(1, 15860020), (2, 7930010), (4, 3965005), (5, 3172004), (10, 1586002), (11, 1441820), (20, 793001), (22, 720910), (44, 360455), (55, 288364), (110, 144182), (220, 72091)]