164580320

素因数分解:

$2^5\times 5^1\times {\mathrm{397}}^1\times {\mathrm{2591}}^1$

素因数の和:3003

約数の個数: 48

約数和(自身を含む): 389950848

約数和(自身を除く): 225370528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 397, 794, 1588, 1985, 2591, 3176, 3970, 5182, 6352, 7940, 10364, 12704, 12955, 15880, 20728, 25910, 31760, 41456, 51820, 63520, 82912, 103640, 207280, 414560, 1028627, 2057254, 4114508, 5143135, 8229016, 10286270, 16458032, 20572540, 32916064, 41145080, 82290160, 164580320]

約数ペア:

[(1, 164580320), (2, 82290160), (4, 41145080), (5, 32916064), (8, 20572540), (10, 16458032), (16, 10286270), (20, 8229016), (32, 5143135), (40, 4114508), (80, 2057254), (160, 1028627), (397, 414560), (794, 207280), (1588, 103640), (1985, 82912), (2591, 63520), (3176, 51820), (3970, 41456), (5182, 31760), (6352, 25910), (7940, 20728), (10364, 15880), (12704, 12955)]