28577185

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{347}}^1$

素因数の和:553

約数の個数: 32

約数和(自身を含む): 42561792

約数和(自身を除く): 13984607

約数列:

[1, 5, 7, 13, 35, 65, 91, 181, 347, 455, 905, 1267, 1735, 2353, 2429, 4511, 6335, 11765, 12145, 16471, 22555, 31577, 62807, 82355, 157885, 314035, 439649, 816491, 2198245, 4082455, 5715437, 28577185]

約数ペア:

[(1, 28577185), (5, 5715437), (7, 4082455), (13, 2198245), (35, 816491), (65, 439649), (91, 314035), (181, 157885), (347, 82355), (455, 62807), (905, 31577), (1267, 22555), (1735, 16471), (2353, 12145), (2429, 11765), (4511, 6335)]