128004985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{51929}}^1$

素因数の和:51980

約数の個数: 16

約数和(自身を含む): 168253200

約数和(自身を除く): 40248215

約数列:

[1, 5, 17, 29, 85, 145, 493, 2465, 51929, 259645, 882793, 1505941, 4413965, 7529705, 25600997, 128004985]

約数ペア:

[(1, 128004985), (5, 25600997), (17, 7529705), (29, 4413965), (85, 1505941), (145, 882793), (493, 259645), (2465, 51929)]