8149640

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2579}}^1$

素因数の和:2669

約数の個数: 32

約数和(自身を含む): 18576000

約数和(自身を除く): 10426360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 2579, 3160, 5158, 10316, 12895, 20632, 25790, 51580, 103160, 203741, 407482, 814964, 1018705, 1629928, 2037410, 4074820, 8149640]

約数ペア:

[(1, 8149640), (2, 4074820), (4, 2037410), (5, 1629928), (8, 1018705), (10, 814964), (20, 407482), (40, 203741), (79, 103160), (158, 51580), (316, 25790), (395, 20632), (632, 12895), (790, 10316), (1580, 5158), (2579, 3160)]