239157080

素因数分解:

$2^3\times 5^1\times {\mathrm{647}}^1\times {\mathrm{9241}}^1$

素因数の和:9899

約数の個数: 32

約数和(自身を含む): 538993440

約数和(自身を除く): 299836360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 647, 1294, 2588, 3235, 5176, 6470, 9241, 12940, 18482, 25880, 36964, 46205, 73928, 92410, 184820, 369640, 5978927, 11957854, 23915708, 29894635, 47831416, 59789270, 119578540, 239157080]

約数ペア:

[(1, 239157080), (2, 119578540), (4, 59789270), (5, 47831416), (8, 29894635), (10, 23915708), (20, 11957854), (40, 5978927), (647, 369640), (1294, 184820), (2588, 92410), (3235, 73928), (5176, 46205), (6470, 36964), (9241, 25880), (12940, 18482)]