165448520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{2237}}^1$

素因数の和:2334

約数の個数: 48

約数和(自身を含む): 381288060

約数和(自身を除く): 215839540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 1849, 2237, 3698, 4474, 7396, 8948, 9245, 11185, 14792, 17896, 18490, 22370, 36980, 44740, 73960, 89480, 96191, 192382, 384764, 480955, 769528, 961910, 1923820, 3847640, 4136213, 8272426, 16544852, 20681065, 33089704, 41362130, 82724260, 165448520]

約数ペア:

[(1, 165448520), (2, 82724260), (4, 41362130), (5, 33089704), (8, 20681065), (10, 16544852), (20, 8272426), (40, 4136213), (43, 3847640), (86, 1923820), (172, 961910), (215, 769528), (344, 480955), (430, 384764), (860, 192382), (1720, 96191), (1849, 89480), (2237, 73960), (3698, 44740), (4474, 36980), (7396, 22370), (8948, 18490), (9245, 17896), (11185, 14792)]