20504020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{33071}}^1$

素因数の和:33111

約数の個数: 24

約数和(自身を含む): 44448768

約数和(自身を除く): 23944748

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 33071, 66142, 132284, 165355, 330710, 661420, 1025201, 2050402, 4100804, 5126005, 10252010, 20504020]

約数ペア:

[(1, 20504020), (2, 10252010), (4, 5126005), (5, 4100804), (10, 2050402), (20, 1025201), (31, 661420), (62, 330710), (124, 165355), (155, 132284), (310, 66142), (620, 33071)]