640056170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4923509}}^1$

素因数の和:4923529

約数の個数: 16

約数和(自身を含む): 1240724520

約数和(自身を除く): 600668350

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 4923509, 9847018, 24617545, 49235090, 64005617, 128011234, 320028085, 640056170]

約数ペア:

[(1, 640056170), (2, 320028085), (5, 128011234), (10, 64005617), (13, 49235090), (26, 24617545), (65, 9847018), (130, 4923509)]