81261540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14563}}^1$

素因数の和:14609

約数の個数: 72

約数和(自身を含む): 254462208

約数和(自身を除く): 173200668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 14563, 29126, 43689, 58252, 72815, 87378, 131067, 145630, 174756, 218445, 262134, 291260, 436890, 451453, 524268, 655335, 873780, 902906, 1310670, 1354359, 1805812, 2257265, 2621340, 2708718, 4063077, 4514530, 5417436, 6771795, 8126154, 9029060, 13543590, 16252308, 20315385, 27087180, 40630770, 81261540]

約数ペア:

[(1, 81261540), (2, 40630770), (3, 27087180), (4, 20315385), (5, 16252308), (6, 13543590), (9, 9029060), (10, 8126154), (12, 6771795), (15, 5417436), (18, 4514530), (20, 4063077), (30, 2708718), (31, 2621340), (36, 2257265), (45, 1805812), (60, 1354359), (62, 1310670), (90, 902906), (93, 873780), (124, 655335), (155, 524268), (180, 451453), (186, 436890), (279, 291260), (310, 262134), (372, 218445), (465, 174756), (558, 145630), (620, 131067), (930, 87378), (1116, 72815), (1395, 58252), (1860, 43689), (2790, 29126), (5580, 14563)]