80871660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{449287}}^1$

素因数の和:449302

約数の個数: 36

約数和(自身を含む): 245311248

約数和(自身を除く): 164439588

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 449287, 898574, 1347861, 1797148, 2246435, 2695722, 4043583, 4492870, 5391444, 6739305, 8087166, 8985740, 13478610, 16174332, 20217915, 26957220, 40435830, 80871660]

約数ペア:

[(1, 80871660), (2, 40435830), (3, 26957220), (4, 20217915), (5, 16174332), (6, 13478610), (9, 8985740), (10, 8087166), (12, 6739305), (15, 5391444), (18, 4492870), (20, 4043583), (30, 2695722), (36, 2246435), (45, 1797148), (60, 1347861), (90, 898574), (180, 449287)]