28626660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{443}}^1$

素因数の和:817

約数の個数: 72

約数和(自身を含む): 87272640

約数和(自身を除く): 58645980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 359, 443, 718, 886, 1077, 1329, 1436, 1772, 1795, 2154, 2215, 2658, 3231, 3590, 3987, 4308, 4430, 5316, 5385, 6462, 6645, 7180, 7974, 8860, 10770, 12924, 13290, 15948, 16155, 19935, 21540, 26580, 32310, 39870, 64620, 79740, 159037, 318074, 477111, 636148, 795185, 954222, 1431333, 1590370, 1908444, 2385555, 2862666, 3180740, 4771110, 5725332, 7156665, 9542220, 14313330, 28626660]

約数ペア:

[(1, 28626660), (2, 14313330), (3, 9542220), (4, 7156665), (5, 5725332), (6, 4771110), (9, 3180740), (10, 2862666), (12, 2385555), (15, 1908444), (18, 1590370), (20, 1431333), (30, 954222), (36, 795185), (45, 636148), (60, 477111), (90, 318074), (180, 159037), (359, 79740), (443, 64620), (718, 39870), (886, 32310), (1077, 26580), (1329, 21540), (1436, 19935), (1772, 16155), (1795, 15948), (2154, 13290), (2215, 12924), (2658, 10770), (3231, 8860), (3590, 7974), (3987, 7180), (4308, 6645), (4430, 6462), (5316, 5385)]