28256585

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 42230160

約数和(自身を除く): 13973575

約数列:

[1, 5, 7, 29, 35, 41, 49, 97, 145, 203, 205, 245, 287, 485, 679, 1015, 1189, 1421, 1435, 2009, 2813, 3395, 3977, 4753, 5945, 7105, 8323, 10045, 14065, 19691, 19885, 23765, 27839, 41615, 58261, 98455, 115333, 137837, 139195, 194873, 291305, 576665, 689185, 807331, 974365, 4036655, 5651317, 28256585]

約数ペア:

[(1, 28256585), (5, 5651317), (7, 4036655), (29, 974365), (35, 807331), (41, 689185), (49, 576665), (97, 291305), (145, 194873), (203, 139195), (205, 137837), (245, 115333), (287, 98455), (485, 58261), (679, 41615), (1015, 27839), (1189, 23765), (1421, 19885), (1435, 19691), (2009, 14065), (2813, 10045), (3395, 8323), (3977, 7105), (4753, 5945)]