255804510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{655909}}^1$

素因数の和:655932

約数の個数: 32

約数和(自身を含む): 661157280

約数和(自身を除く): 405352770

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 655909, 1311818, 1967727, 3279545, 3935454, 6559090, 8526817, 9838635, 17053634, 19677270, 25580451, 42634085, 51160902, 85268170, 127902255, 255804510]

約数ペア:

[(1, 255804510), (2, 127902255), (3, 85268170), (5, 51160902), (6, 42634085), (10, 25580451), (13, 19677270), (15, 17053634), (26, 9838635), (30, 8526817), (39, 6559090), (65, 3935454), (78, 3279545), (130, 1967727), (195, 1311818), (390, 655909)]