1278990

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{1579}}^1$

素因数の和:1598

約数の個数: 40

約数和(自身を含む): 3441240

約数和(自身を除く): 2162250

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 1579, 3158, 4737, 7895, 9474, 14211, 15790, 23685, 28422, 42633, 47370, 71055, 85266, 127899, 142110, 213165, 255798, 426330, 639495, 1278990]

約数ペア:

[(1, 1278990), (2, 639495), (3, 426330), (5, 255798), (6, 213165), (9, 142110), (10, 127899), (15, 85266), (18, 71055), (27, 47370), (30, 42633), (45, 28422), (54, 23685), (81, 15790), (90, 14211), (135, 9474), (162, 7895), (270, 4737), (405, 3158), (810, 1579)]