207171880

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{139981}}^1$

素因数の和:140029

約数の個数: 32

約数和(自身を含む): 478738440

約数和(自身を除く): 271566560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 139981, 279962, 559924, 699905, 1119848, 1399810, 2799620, 5179297, 5599240, 10358594, 20717188, 25896485, 41434376, 51792970, 103585940, 207171880]

約数ペア:

[(1, 207171880), (2, 103585940), (4, 51792970), (5, 41434376), (8, 25896485), (10, 20717188), (20, 10358594), (37, 5599240), (40, 5179297), (74, 2799620), (148, 1399810), (185, 1119848), (296, 699905), (370, 559924), (740, 279962), (1480, 139981)]