28743970

素因数分解:

$2^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{20981}}^1$

素因数の和:21125

約数の個数: 16

約数和(自身を含む): 52119288

約数和(自身を除く): 23375318

約数列:

[1, 2, 5, 10, 137, 274, 685, 1370, 20981, 41962, 104905, 209810, 2874397, 5748794, 14371985, 28743970]

約数ペア:

[(1, 28743970), (2, 14371985), (5, 5748794), (10, 2874397), (137, 209810), (274, 104905), (685, 41962), (1370, 20981)]