159986960

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{40813}}^1$

素因数の和:40840

約数の個数: 60

約数和(自身を含む): 432710028

約数和(自身を除く): 272723068

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 40813, 81626, 163252, 204065, 285691, 326504, 408130, 571382, 653008, 816260, 1142764, 1428455, 1632520, 1999837, 2285528, 2856910, 3265040, 3999674, 4571056, 5713820, 7999348, 9999185, 11427640, 15998696, 19998370, 22855280, 31997392, 39996740, 79993480, 159986960]

約数ペア:

[(1, 159986960), (2, 79993480), (4, 39996740), (5, 31997392), (7, 22855280), (8, 19998370), (10, 15998696), (14, 11427640), (16, 9999185), (20, 7999348), (28, 5713820), (35, 4571056), (40, 3999674), (49, 3265040), (56, 2856910), (70, 2285528), (80, 1999837), (98, 1632520), (112, 1428455), (140, 1142764), (196, 816260), (245, 653008), (280, 571382), (392, 408130), (490, 326504), (560, 285691), (784, 204065), (980, 163252), (1960, 81626), (3920, 40813)]