201223280

素因数分解:

$2^4\times 5^1\times {\mathrm{2515291}}^1$

素因数の和:2515304

約数の個数: 20

約数和(自身を含む): 467844312

約数和(自身を除く): 266621032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2515291, 5030582, 10061164, 12576455, 20122328, 25152910, 40244656, 50305820, 100611640, 201223280]

約数ペア:

[(1, 201223280), (2, 100611640), (4, 50305820), (5, 40244656), (8, 25152910), (10, 20122328), (16, 12576455), (20, 10061164), (40, 5030582), (80, 2515291)]