309611440

素因数分解:

$2^4\times 5^1\times {\mathrm{739}}^1\times {\mathrm{5237}}^1$

素因数の和:5989

約数の個数: 40

約数和(自身を含む): 720958320

約数和(自身を除く): 411346880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 739, 1478, 2956, 3695, 5237, 5912, 7390, 10474, 11824, 14780, 20948, 26185, 29560, 41896, 52370, 59120, 83792, 104740, 209480, 418960, 3870143, 7740286, 15480572, 19350715, 30961144, 38701430, 61922288, 77402860, 154805720, 309611440]

約数ペア:

[(1, 309611440), (2, 154805720), (4, 77402860), (5, 61922288), (8, 38701430), (10, 30961144), (16, 19350715), (20, 15480572), (40, 7740286), (80, 3870143), (739, 418960), (1478, 209480), (2956, 104740), (3695, 83792), (5237, 59120), (5912, 52370), (7390, 41896), (10474, 29560), (11824, 26185), (14780, 20948)]