78740320

素因数分解:

$2^5\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2473}}^1$

素因数の和:2687

約数の個数: 48

約数和(自身を含む): 187034400

約数和(自身を除く): 108294080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 199, 398, 796, 995, 1592, 1990, 2473, 3184, 3980, 4946, 6368, 7960, 9892, 12365, 15920, 19784, 24730, 31840, 39568, 49460, 79136, 98920, 197840, 395680, 492127, 984254, 1968508, 2460635, 3937016, 4921270, 7874032, 9842540, 15748064, 19685080, 39370160, 78740320]

約数ペア:

[(1, 78740320), (2, 39370160), (4, 19685080), (5, 15748064), (8, 9842540), (10, 7874032), (16, 4921270), (20, 3937016), (32, 2460635), (40, 1968508), (80, 984254), (160, 492127), (199, 395680), (398, 197840), (796, 98920), (995, 79136), (1592, 49460), (1990, 39568), (2473, 31840), (3184, 24730), (3980, 19784), (4946, 15920), (6368, 12365), (7960, 9892)]