394478968

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{3947}}^1$

素因数の和:4028

約数の個数: 48

約数和(自身を含む): 823276440

約数和(自身を除く): 428797472

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 961, 1612, 1922, 3224, 3844, 3947, 7688, 7894, 12493, 15788, 24986, 31576, 49972, 51311, 99944, 102622, 122357, 205244, 244714, 410488, 489428, 978856, 1590641, 3181282, 3793067, 6362564, 7586134, 12725128, 15172268, 30344536, 49309871, 98619742, 197239484, 394478968]

約数ペア:

[(1, 394478968), (2, 197239484), (4, 98619742), (8, 49309871), (13, 30344536), (26, 15172268), (31, 12725128), (52, 7586134), (62, 6362564), (104, 3793067), (124, 3181282), (248, 1590641), (403, 978856), (806, 489428), (961, 410488), (1612, 244714), (1922, 205244), (3224, 122357), (3844, 102622), (3947, 99944), (7688, 51311), (7894, 49972), (12493, 31576), (15788, 24986)]