13902005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{547}}^1$

素因数の和:605

約数の個数: 32

約数和(自身を含む): 19885824

約数和(自身を除く): 5983819

約数列:

[1, 5, 13, 17, 23, 65, 85, 115, 221, 299, 391, 547, 1105, 1495, 1955, 2735, 5083, 7111, 9299, 12581, 25415, 35555, 46495, 62905, 120887, 163553, 213877, 604435, 817765, 1069385, 2780401, 13902005]

約数ペア:

[(1, 13902005), (5, 2780401), (13, 1069385), (17, 817765), (23, 604435), (65, 213877), (85, 163553), (115, 120887), (221, 62905), (299, 46495), (391, 35555), (547, 25415), (1105, 12581), (1495, 9299), (1955, 7111), (2735, 5083)]