165741280

素因数分解:

$2^5\times 5^1\times {\mathrm{997}}^1\times {\mathrm{1039}}^1$

素因数の和:2051

約数の個数: 48

約数和(自身を含む): 392333760

約数和(自身を除く): 226592480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 997, 1039, 1994, 2078, 3988, 4156, 4985, 5195, 7976, 8312, 9970, 10390, 15952, 16624, 19940, 20780, 31904, 33248, 39880, 41560, 79760, 83120, 159520, 166240, 1035883, 2071766, 4143532, 5179415, 8287064, 10358830, 16574128, 20717660, 33148256, 41435320, 82870640, 165741280]

約数ペア:

[(1, 165741280), (2, 82870640), (4, 41435320), (5, 33148256), (8, 20717660), (10, 16574128), (16, 10358830), (20, 8287064), (32, 5179415), (40, 4143532), (80, 2071766), (160, 1035883), (997, 166240), (1039, 159520), (1994, 83120), (2078, 79760), (3988, 41560), (4156, 39880), (4985, 33248), (5195, 31904), (7976, 20780), (8312, 19940), (9970, 16624), (10390, 15952)]