82870640

素因数分解:

$2^4\times 5^1\times {\mathrm{997}}^1\times {\mathrm{1039}}^1$

素因数の和:2049

約数の個数: 40

約数和(自身を含む): 193053120

約数和(自身を除く): 110182480

約数列:

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

約数ペア:

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