16887715

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:112

約数の個数: 48

約数和(自身を含む): 24756480

約数和(自身を除く): 7868765

約数列:

[1, 5, 13, 17, 29, 31, 65, 85, 145, 155, 221, 289, 377, 403, 493, 527, 899, 1105, 1445, 1885, 2015, 2465, 2635, 3757, 4495, 6409, 6851, 8381, 8959, 11687, 15283, 18785, 32045, 34255, 41905, 44795, 58435, 76415, 108953, 116467, 198679, 259811, 544765, 582335, 993395, 1299055, 3377543, 16887715]

約数ペア:

[(1, 16887715), (5, 3377543), (13, 1299055), (17, 993395), (29, 582335), (31, 544765), (65, 259811), (85, 198679), (145, 116467), (155, 108953), (221, 76415), (289, 58435), (377, 44795), (403, 41905), (493, 34255), (527, 32045), (899, 18785), (1105, 15283), (1445, 11687), (1885, 8959), (2015, 8381), (2465, 6851), (2635, 6409), (3757, 4495)]