812591320

素因数分解:

$2^3\times 5^1\times {\mathrm{2579}}^1\times {\mathrm{7877}}^1$

素因数の和:10467

約数の個数: 32

約数和(自身を含む): 1829271600

約数和(自身を除く): 1016680280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2579, 5158, 7877, 10316, 12895, 15754, 20632, 25790, 31508, 39385, 51580, 63016, 78770, 103160, 157540, 315080, 20314783, 40629566, 81259132, 101573915, 162518264, 203147830, 406295660, 812591320]

約数ペア:

[(1, 812591320), (2, 406295660), (4, 203147830), (5, 162518264), (8, 101573915), (10, 81259132), (20, 40629566), (40, 20314783), (2579, 315080), (5158, 157540), (7877, 103160), (10316, 78770), (12895, 63016), (15754, 51580), (20632, 39385), (25790, 31508)]