249342145

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:346

約数の個数: 64

約数和(自身を含む): 365783040

約数和(自身を除く): 116440895

約数列:

[1, 5, 13, 17, 29, 31, 65, 85, 145, 155, 221, 251, 377, 403, 493, 527, 899, 1105, 1255, 1885, 2015, 2465, 2635, 3263, 4267, 4495, 6409, 6851, 7279, 7781, 11687, 15283, 16315, 21335, 32045, 34255, 36395, 38905, 55471, 58435, 76415, 94627, 101153, 123743, 132277, 198679, 225649, 277355, 473135, 505765, 618715, 661385, 993395, 1128245, 1608659, 1719601, 2933437, 3836033, 8043295, 8598005, 14667185, 19180165, 49868429, 249342145]

約数ペア:

[(1, 249342145), (5, 49868429), (13, 19180165), (17, 14667185), (29, 8598005), (31, 8043295), (65, 3836033), (85, 2933437), (145, 1719601), (155, 1608659), (221, 1128245), (251, 993395), (377, 661385), (403, 618715), (493, 505765), (527, 473135), (899, 277355), (1105, 225649), (1255, 198679), (1885, 132277), (2015, 123743), (2465, 101153), (2635, 94627), (3263, 76415), (4267, 58435), (4495, 55471), (6409, 38905), (6851, 36395), (7279, 34255), (7781, 32045), (11687, 21335), (15283, 16315)]