202105305

素因数分解:

$3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 358176000

約数和(自身を除く): 156070695

約数列:

[1, 3, 5, 9, 15, 45, 79, 139, 237, 395, 409, 417, 695, 711, 1185, 1227, 1251, 2045, 2085, 3555, 3681, 6135, 6255, 10981, 18405, 32311, 32943, 54905, 56851, 96933, 98829, 161555, 164715, 170553, 284255, 290799, 484665, 494145, 511659, 852765, 1453995, 2558295, 4491229, 13473687, 22456145, 40421061, 67368435, 202105305]

約数ペア:

[(1, 202105305), (3, 67368435), (5, 40421061), (9, 22456145), (15, 13473687), (45, 4491229), (79, 2558295), (139, 1453995), (237, 852765), (395, 511659), (409, 494145), (417, 484665), (695, 290799), (711, 284255), (1185, 170553), (1227, 164715), (1251, 161555), (2045, 98829), (2085, 96933), (3555, 56851), (3681, 54905), (6135, 32943), (6255, 32311), (10981, 18405)]