268991710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{20089}}^1$

素因数の和:20212

約数の個数: 32

約数和(自身を含む): 526518720

約数和(自身を除く): 257527010

約数列:

[1, 2, 5, 10, 13, 26, 65, 103, 130, 206, 515, 1030, 1339, 2678, 6695, 13390, 20089, 40178, 100445, 200890, 261157, 522314, 1305785, 2069167, 2611570, 4138334, 10345835, 20691670, 26899171, 53798342, 134495855, 268991710]

約数ペア:

[(1, 268991710), (2, 134495855), (5, 53798342), (10, 26899171), (13, 20691670), (26, 10345835), (65, 4138334), (103, 2611570), (130, 2069167), (206, 1305785), (515, 522314), (1030, 261157), (1339, 200890), (2678, 100445), (6695, 40178), (13390, 20089)]