12478140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{383}}^1$

素因数の和:579

約数の個数: 72

約数和(自身を含む): 38158848

約数和(自身を除く): 25680708

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 181, 362, 383, 543, 724, 766, 905, 1086, 1149, 1532, 1629, 1810, 1915, 2172, 2298, 2715, 3258, 3447, 3620, 3830, 4596, 5430, 5745, 6516, 6894, 7660, 8145, 10860, 11490, 13788, 16290, 17235, 22980, 32580, 34470, 68940, 69323, 138646, 207969, 277292, 346615, 415938, 623907, 693230, 831876, 1039845, 1247814, 1386460, 2079690, 2495628, 3119535, 4159380, 6239070, 12478140]

約数ペア:

[(1, 12478140), (2, 6239070), (3, 4159380), (4, 3119535), (5, 2495628), (6, 2079690), (9, 1386460), (10, 1247814), (12, 1039845), (15, 831876), (18, 693230), (20, 623907), (30, 415938), (36, 346615), (45, 277292), (60, 207969), (90, 138646), (180, 69323), (181, 68940), (362, 34470), (383, 32580), (543, 22980), (724, 17235), (766, 16290), (905, 13788), (1086, 11490), (1149, 10860), (1532, 8145), (1629, 7660), (1810, 6894), (1915, 6516), (2172, 5745), (2298, 5430), (2715, 4596), (3258, 3830), (3447, 3620)]