128811475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 181238400

約数和(自身を除く): 52426925

約数列:

[1, 5, 13, 25, 29, 65, 79, 145, 173, 325, 377, 395, 725, 865, 1027, 1885, 1975, 2249, 2291, 4325, 5017, 5135, 9425, 11245, 11455, 13667, 25085, 25675, 29783, 56225, 57275, 65221, 68335, 125425, 148915, 177671, 326105, 341675, 396343, 744575, 888355, 1630525, 1981715, 4441775, 5152459, 9908575, 25762295, 128811475]

約数ペア:

[(1, 128811475), (5, 25762295), (13, 9908575), (25, 5152459), (29, 4441775), (65, 1981715), (79, 1630525), (145, 888355), (173, 744575), (325, 396343), (377, 341675), (395, 326105), (725, 177671), (865, 148915), (1027, 125425), (1885, 68335), (1975, 65221), (2249, 57275), (2291, 56225), (4325, 29783), (5017, 25675), (5135, 25085), (9425, 13667), (11245, 11455)]