81418140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{383}}^1\times {\mathrm{1181}}^1$

素因数の和:1579

約数の個数: 72

約数和(自身を含む): 247822848

約数和(自身を除く): 166404708

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 383, 766, 1149, 1181, 1532, 1915, 2298, 2362, 3447, 3543, 3830, 4596, 4724, 5745, 5905, 6894, 7086, 7660, 10629, 11490, 11810, 13788, 14172, 17235, 17715, 21258, 22980, 23620, 34470, 35430, 42516, 53145, 68940, 70860, 106290, 212580, 452323, 904646, 1356969, 1809292, 2261615, 2713938, 4070907, 4523230, 5427876, 6784845, 8141814, 9046460, 13569690, 16283628, 20354535, 27139380, 40709070, 81418140]

約数ペア:

[(1, 81418140), (2, 40709070), (3, 27139380), (4, 20354535), (5, 16283628), (6, 13569690), (9, 9046460), (10, 8141814), (12, 6784845), (15, 5427876), (18, 4523230), (20, 4070907), (30, 2713938), (36, 2261615), (45, 1809292), (60, 1356969), (90, 904646), (180, 452323), (383, 212580), (766, 106290), (1149, 70860), (1181, 68940), (1532, 53145), (1915, 42516), (2298, 35430), (2362, 34470), (3447, 23620), (3543, 22980), (3830, 21258), (4596, 17715), (4724, 17235), (5745, 14172), (5905, 13788), (6894, 11810), (7086, 11490), (7660, 10629)]