80242960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{143291}}^1$

素因数の和:143311

約数の個数: 40

約数和(自身を含む): 213218496

約数和(自身を除く): 132975536

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 143291, 286582, 573164, 716455, 1003037, 1146328, 1432910, 2006074, 2292656, 2865820, 4012148, 5015185, 5731640, 8024296, 10030370, 11463280, 16048592, 20060740, 40121480, 80242960]

約数ペア:

[(1, 80242960), (2, 40121480), (4, 20060740), (5, 16048592), (7, 11463280), (8, 10030370), (10, 8024296), (14, 5731640), (16, 5015185), (20, 4012148), (28, 2865820), (35, 2292656), (40, 2006074), (56, 1432910), (70, 1146328), (80, 1003037), (112, 716455), (140, 573164), (280, 286582), (560, 143291)]