80240720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{143287}}^1$

素因数の和:143307

約数の個数: 40

約数和(自身を含む): 213212544

約数和(自身を除く): 132971824

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 143287, 286574, 573148, 716435, 1003009, 1146296, 1432870, 2006018, 2292592, 2865740, 4012036, 5015045, 5731480, 8024072, 10030090, 11462960, 16048144, 20060180, 40120360, 80240720]

約数ペア:

[(1, 80240720), (2, 40120360), (4, 20060180), (5, 16048144), (7, 11462960), (8, 10030090), (10, 8024072), (14, 5731480), (16, 5015045), (20, 4012036), (28, 2865740), (35, 2292592), (40, 2006018), (56, 1432870), (70, 1146296), (80, 1003009), (112, 716435), (140, 573148), (280, 286574), (560, 143287)]