155777765

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{977}}^1$

素因数の和:1229

約数の個数: 32

約数和(自身を含む): 220824576

約数和(自身を除く): 65046811

約数列:

[1, 5, 11, 13, 55, 65, 143, 223, 715, 977, 1115, 2453, 2899, 4885, 10747, 12265, 12701, 14495, 31889, 53735, 63505, 139711, 159445, 217871, 698555, 1089355, 2396581, 2832323, 11982905, 14161615, 31155553, 155777765]

約数ペア:

[(1, 155777765), (5, 31155553), (11, 14161615), (13, 11982905), (55, 2832323), (65, 2396581), (143, 1089355), (223, 698555), (715, 217871), (977, 159445), (1115, 139711), (2453, 63505), (2899, 53735), (4885, 31889), (10747, 14495), (12265, 12701)]