28239660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{156887}}^1$

素因数の和:156902

約数の個数: 36

約数和(自身を含む): 85660848

約数和(自身を除く): 57421188

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 156887, 313774, 470661, 627548, 784435, 941322, 1411983, 1568870, 1882644, 2353305, 2823966, 3137740, 4706610, 5647932, 7059915, 9413220, 14119830, 28239660]

約数ペア:

[(1, 28239660), (2, 14119830), (3, 9413220), (4, 7059915), (5, 5647932), (6, 4706610), (9, 3137740), (10, 2823966), (12, 2353305), (15, 1882644), (18, 1568870), (20, 1411983), (30, 941322), (36, 784435), (45, 627548), (60, 470661), (90, 313774), (180, 156887)]