128598325

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{1993}}^1$

素因数の和:2121

約数の個数: 24

約数和(自身を含む): 166897800

約数和(自身を除く): 38299475

約数列:

[1, 5, 25, 29, 89, 145, 445, 725, 1993, 2225, 2581, 9965, 12905, 49825, 57797, 64525, 177377, 288985, 886885, 1444925, 4434425, 5143933, 25719665, 128598325]

約数ペア:

[(1, 128598325), (5, 25719665), (25, 5143933), (29, 4434425), (89, 1444925), (145, 886885), (445, 288985), (725, 177377), (1993, 64525), (2225, 57797), (2581, 49825), (9965, 12905)]