318161220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{407899}}^1$

素因数の和:407924

約数の個数: 48

約数和(自身を含む): 959380800

約数和(自身を除く): 641219580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 407899, 815798, 1223697, 1631596, 2039495, 2447394, 4078990, 4894788, 5302687, 6118485, 8157980, 10605374, 12236970, 15908061, 21210748, 24473940, 26513435, 31816122, 53026870, 63632244, 79540305, 106053740, 159080610, 318161220]

約数ペア:

[(1, 318161220), (2, 159080610), (3, 106053740), (4, 79540305), (5, 63632244), (6, 53026870), (10, 31816122), (12, 26513435), (13, 24473940), (15, 21210748), (20, 15908061), (26, 12236970), (30, 10605374), (39, 8157980), (52, 6118485), (60, 5302687), (65, 4894788), (78, 4078990), (130, 2447394), (156, 2039495), (195, 1631596), (260, 1223697), (390, 815798), (780, 407899)]