20474270

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28837}}^1$

素因数の和:28915

約数の個数: 16

約数和(自身を含む): 37374048

約数和(自身を除く): 16899778

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28837, 57674, 144185, 288370, 2047427, 4094854, 10237135, 20474270]

約数ペア:

[(1, 20474270), (2, 10237135), (5, 4094854), (10, 2047427), (71, 288370), (142, 144185), (355, 57674), (710, 28837)]