261782160

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1090759}}^1$

素因数の和:1090775

約数の個数: 40

約数和(自身を含む): 811525440

約数和(自身を除く): 549743280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1090759, 2181518, 3272277, 4363036, 5453795, 6544554, 8726072, 10907590, 13089108, 16361385, 17452144, 21815180, 26178216, 32722770, 43630360, 52356432, 65445540, 87260720, 130891080, 261782160]

約数ペア:

[(1, 261782160), (2, 130891080), (3, 87260720), (4, 65445540), (5, 52356432), (6, 43630360), (8, 32722770), (10, 26178216), (12, 21815180), (15, 17452144), (16, 16361385), (20, 13089108), (24, 10907590), (30, 8726072), (40, 6544554), (48, 5453795), (60, 4363036), (80, 3272277), (120, 2181518), (240, 1090759)]