20575090

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28979}}^1$

素因数の和:29057

約数の個数: 16

約数和(自身を含む): 37558080

約数和(自身を除く): 16982990

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28979, 57958, 144895, 289790, 2057509, 4115018, 10287545, 20575090]

約数ペア:

[(1, 20575090), (2, 10287545), (5, 4115018), (10, 2057509), (71, 289790), (142, 144895), (355, 57958), (710, 28979)]