64637720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{230849}}^1$

素因数の和:230867

約数の個数: 32

約数和(自身を含む): 166212000

約数和(自身を除く): 101574280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 230849, 461698, 923396, 1154245, 1615943, 1846792, 2308490, 3231886, 4616980, 6463772, 8079715, 9233960, 12927544, 16159430, 32318860, 64637720]

約数ペア:

[(1, 64637720), (2, 32318860), (4, 16159430), (5, 12927544), (7, 9233960), (8, 8079715), (10, 6463772), (14, 4616980), (20, 3231886), (28, 2308490), (35, 1846792), (40, 1615943), (56, 1154245), (70, 923396), (140, 461698), (280, 230849)]