9902960

素因数分解:

$2^4\times 5^1\times {\mathrm{123787}}^1$

素因数の和:123800

約数の個数: 20

約数和(自身を含む): 23024568

約数和(自身を除く): 13121608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 123787, 247574, 495148, 618935, 990296, 1237870, 1980592, 2475740, 4951480, 9902960]

約数ペア:

[(1, 9902960), (2, 4951480), (4, 2475740), (5, 1980592), (8, 1237870), (10, 990296), (16, 618935), (20, 495148), (40, 247574), (80, 123787)]