90428650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{139121}}^1$

素因数の和:139146

約数の個数: 24

約数和(自身を含む): 181136844

約数和(自身を除く): 90708194

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 139121, 278242, 695605, 1391210, 1808573, 3478025, 3617146, 6956050, 9042865, 18085730, 45214325, 90428650]

約数ペア:

[(1, 90428650), (2, 45214325), (5, 18085730), (10, 9042865), (13, 6956050), (25, 3617146), (26, 3478025), (50, 1808573), (65, 1391210), (130, 695605), (325, 278242), (650, 139121)]