259356890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{19753}}^1$

素因数の和:19874

約数の個数: 32

約数和(自身を含む): 507756816

約数和(自身を除く): 248399926

約数列:

[1, 2, 5, 10, 13, 26, 65, 101, 130, 202, 505, 1010, 1313, 2626, 6565, 13130, 19753, 39506, 98765, 197530, 256789, 513578, 1283945, 1995053, 2567890, 3990106, 9975265, 19950530, 25935689, 51871378, 129678445, 259356890]

約数ペア:

[(1, 259356890), (2, 129678445), (5, 51871378), (10, 25935689), (13, 19950530), (26, 9975265), (65, 3990106), (101, 2567890), (130, 1995053), (202, 1283945), (505, 513578), (1010, 256789), (1313, 197530), (2626, 98765), (6565, 39506), (13130, 19753)]