129872090

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{99139}}^1$

素因数の和:99277

約数の個数: 16

約数和(自身を含む): 235556640

約数和(自身を除く): 105684550

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 99139, 198278, 495695, 991390, 12987209, 25974418, 64936045, 129872090]

約数ペア:

[(1, 129872090), (2, 64936045), (5, 25974418), (10, 12987209), (131, 991390), (262, 495695), (655, 198278), (1310, 99139)]