389866960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{743}}^1\times {\mathrm{937}}^1$

素因数の和:1700

約数の個数: 80

約数和(自身を含む): 1038433536

約数和(自身を除く): 648566576

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 743, 937, 1486, 1874, 2972, 3715, 3748, 4685, 5201, 5944, 6559, 7430, 7496, 9370, 10402, 11888, 13118, 14860, 14992, 18740, 20804, 26005, 26236, 29720, 32795, 37480, 41608, 52010, 52472, 59440, 65590, 74960, 83216, 104020, 104944, 131180, 208040, 262360, 416080, 524720, 696191, 1392382, 2784764, 3480955, 4873337, 5569528, 6961910, 9746674, 11139056, 13923820, 19493348, 24366685, 27847640, 38986696, 48733370, 55695280, 77973392, 97466740, 194933480, 389866960]

約数ペア:

[(1, 389866960), (2, 194933480), (4, 97466740), (5, 77973392), (7, 55695280), (8, 48733370), (10, 38986696), (14, 27847640), (16, 24366685), (20, 19493348), (28, 13923820), (35, 11139056), (40, 9746674), (56, 6961910), (70, 5569528), (80, 4873337), (112, 3480955), (140, 2784764), (280, 1392382), (560, 696191), (743, 524720), (937, 416080), (1486, 262360), (1874, 208040), (2972, 131180), (3715, 104944), (3748, 104020), (4685, 83216), (5201, 74960), (5944, 65590), (6559, 59440), (7430, 52472), (7496, 52010), (9370, 41608), (10402, 37480), (11888, 32795), (13118, 29720), (14860, 26236), (14992, 26005), (18740, 20804)]