404697080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{235289}}^1$

素因数の和:235343

約数の個数: 32

約数和(自身を含む): 931748400

約数和(自身を除く): 527051320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 235289, 470578, 941156, 1176445, 1882312, 2352890, 4705780, 9411560, 10117427, 20234854, 40469708, 50587135, 80939416, 101174270, 202348540, 404697080]

約数ペア:

[(1, 404697080), (2, 202348540), (4, 101174270), (5, 80939416), (8, 50587135), (10, 40469708), (20, 20234854), (40, 10117427), (43, 9411560), (86, 4705780), (172, 2352890), (215, 1882312), (344, 1176445), (430, 941156), (860, 470578), (1720, 235289)]