28581245

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1217}}^1$

素因数の和:1301

約数の個数: 32

約数和(自身を含む): 43497216

約数和(自身を除く): 14915971

約数列:

[1, 5, 7, 11, 35, 55, 61, 77, 305, 385, 427, 671, 1217, 2135, 3355, 4697, 6085, 8519, 13387, 23485, 42595, 66935, 74237, 93709, 371185, 468545, 519659, 816607, 2598295, 4083035, 5716249, 28581245]

約数ペア:

[(1, 28581245), (5, 5716249), (7, 4083035), (11, 2598295), (35, 816607), (55, 519659), (61, 468545), (77, 371185), (305, 93709), (385, 74237), (427, 66935), (671, 42595), (1217, 23485), (2135, 13387), (3355, 8519), (4697, 6085)]