80868780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{49919}}^1$

素因数の和:49940

約数の個数: 60

約数和(自身を含む): 253693440

約数和(自身を除く): 172824660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 49919, 99838, 149757, 199676, 249595, 299514, 449271, 499190, 599028, 748785, 898542, 998380, 1347813, 1497570, 1797084, 2246355, 2695626, 2995140, 4043439, 4492710, 5391252, 6739065, 8086878, 8985420, 13478130, 16173756, 20217195, 26956260, 40434390, 80868780]

約数ペア:

[(1, 80868780), (2, 40434390), (3, 26956260), (4, 20217195), (5, 16173756), (6, 13478130), (9, 8985420), (10, 8086878), (12, 6739065), (15, 5391252), (18, 4492710), (20, 4043439), (27, 2995140), (30, 2695626), (36, 2246355), (45, 1797084), (54, 1497570), (60, 1347813), (81, 998380), (90, 898542), (108, 748785), (135, 599028), (162, 499190), (180, 449271), (270, 299514), (324, 249595), (405, 199676), (540, 149757), (810, 99838), (1620, 49919)]