165173820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{393271}}^1$

素因数の和:393290

約数の個数: 48

約数和(自身を含む): 528557568

約数和(自身を除く): 363383748

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 393271, 786542, 1179813, 1573084, 1966355, 2359626, 2752897, 3932710, 4719252, 5505794, 5899065, 7865420, 8258691, 11011588, 11798130, 13764485, 16517382, 23596260, 27528970, 33034764, 41293455, 55057940, 82586910, 165173820]

約数ペア:

[(1, 165173820), (2, 82586910), (3, 55057940), (4, 41293455), (5, 33034764), (6, 27528970), (7, 23596260), (10, 16517382), (12, 13764485), (14, 11798130), (15, 11011588), (20, 8258691), (21, 7865420), (28, 5899065), (30, 5505794), (35, 4719252), (42, 3932710), (60, 2752897), (70, 2359626), (84, 1966355), (105, 1573084), (140, 1179813), (210, 786542), (420, 393271)]