249575120

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{28621}}^1$

素因数の和:28743

約数の個数: 40

約数和(自身を含む): 585606120

約数和(自身を除く): 336031000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 28621, 57242, 114484, 143105, 228968, 286210, 457936, 572420, 1144840, 2289680, 3119689, 6239378, 12478756, 15598445, 24957512, 31196890, 49915024, 62393780, 124787560, 249575120]

約数ペア:

[(1, 249575120), (2, 124787560), (4, 62393780), (5, 49915024), (8, 31196890), (10, 24957512), (16, 15598445), (20, 12478756), (40, 6239378), (80, 3119689), (109, 2289680), (218, 1144840), (436, 572420), (545, 457936), (872, 286210), (1090, 228968), (1744, 143105), (2180, 114484), (4360, 57242), (8720, 28621)]