261999120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1091663}}^1$

素因数の和:1091679

約数の個数: 40

約数和(自身を含む): 812198016

約数和(自身を除く): 550198896

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1091663, 2183326, 3274989, 4366652, 5458315, 6549978, 8733304, 10916630, 13099956, 16374945, 17466608, 21833260, 26199912, 32749890, 43666520, 52399824, 65499780, 87333040, 130999560, 261999120]

約数ペア:

[(1, 261999120), (2, 130999560), (3, 87333040), (4, 65499780), (5, 52399824), (6, 43666520), (8, 32749890), (10, 26199912), (12, 21833260), (15, 17466608), (16, 16374945), (20, 13099956), (24, 10916630), (30, 8733304), (40, 6549978), (48, 5458315), (60, 4366652), (80, 3274989), (120, 2183326), (240, 1091663)]