257761218

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{881}}^1$

素因数の和:952

約数の個数: 96

約数和(自身を含む): 630637056

約数和(自身を除く): 372875838

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 31, 33, 39, 62, 66, 78, 93, 121, 143, 186, 242, 286, 341, 363, 403, 429, 682, 726, 806, 858, 881, 1023, 1209, 1573, 1762, 2046, 2418, 2643, 3146, 3751, 4433, 4719, 5286, 7502, 8866, 9438, 9691, 11253, 11453, 13299, 19382, 22506, 22906, 26598, 27311, 29073, 34359, 48763, 54622, 58146, 68718, 81933, 97526, 106601, 125983, 146289, 163866, 213202, 251966, 292578, 300421, 319803, 355043, 377949, 600842, 639606, 710086, 755898, 901263, 1065129, 1385813, 1802526, 2130258, 2771626, 3304631, 3905473, 4157439, 6609262, 7810946, 8314878, 9913893, 11716419, 19827786, 23432838, 42960203, 85920406, 128880609, 257761218]

約数ペア:

[(1, 257761218), (2, 128880609), (3, 85920406), (6, 42960203), (11, 23432838), (13, 19827786), (22, 11716419), (26, 9913893), (31, 8314878), (33, 7810946), (39, 6609262), (62, 4157439), (66, 3905473), (78, 3304631), (93, 2771626), (121, 2130258), (143, 1802526), (186, 1385813), (242, 1065129), (286, 901263), (341, 755898), (363, 710086), (403, 639606), (429, 600842), (682, 377949), (726, 355043), (806, 319803), (858, 300421), (881, 292578), (1023, 251966), (1209, 213202), (1573, 163866), (1762, 146289), (2046, 125983), (2418, 106601), (2643, 97526), (3146, 81933), (3751, 68718), (4433, 58146), (4719, 54622), (5286, 48763), (7502, 34359), (8866, 29073), (9438, 27311), (9691, 26598), (11253, 22906), (11453, 22506), (13299, 19382)]