28987010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{222977}}^1$

素因数の和:222997

約数の個数: 16

約数和(自身を含む): 56190456

約数和(自身を除く): 27203446

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 222977, 445954, 1114885, 2229770, 2898701, 5797402, 14493505, 28987010]

約数ペア:

[(1, 28987010), (2, 14493505), (5, 5797402), (10, 2898701), (13, 2229770), (26, 1114885), (65, 445954), (130, 222977)]