81746418

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:627

約数の個数: 64

約数和(自身を含む): 185068800

約数和(自身を除く): 103322382

約数列:

[1, 2, 3, 6, 13, 26, 29, 39, 58, 71, 78, 87, 142, 174, 213, 377, 426, 509, 754, 923, 1018, 1131, 1527, 1846, 2059, 2262, 2769, 3054, 4118, 5538, 6177, 6617, 12354, 13234, 14761, 19851, 26767, 29522, 36139, 39702, 44283, 53534, 72278, 80301, 88566, 108417, 160602, 191893, 216834, 383786, 469807, 575679, 939614, 1048031, 1151358, 1409421, 2096062, 2818842, 3144093, 6288186, 13624403, 27248806, 40873209, 81746418]

約数ペア:

[(1, 81746418), (2, 40873209), (3, 27248806), (6, 13624403), (13, 6288186), (26, 3144093), (29, 2818842), (39, 2096062), (58, 1409421), (71, 1151358), (78, 1048031), (87, 939614), (142, 575679), (174, 469807), (213, 383786), (377, 216834), (426, 191893), (509, 160602), (754, 108417), (923, 88566), (1018, 80301), (1131, 72278), (1527, 53534), (1846, 44283), (2059, 39702), (2262, 36139), (2769, 29522), (3054, 26767), (4118, 19851), (5538, 14761), (6177, 13234), (6617, 12354)]