388770.0000000

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{5233}}^1$

素因数の和:5281

約数の個数: 32

約数和(自身を含む): 17900280

約数和(自身を除く): 10155440

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 5233, 10466, 20932, 26165, 41864, 52330, 104660, 193621, 209320, 387242, 774484, 968105, 1548968, 1936210, 3872420, 7744840]

約数ペア:

[(1, 7744840), (2, 3872420), (4, 1936210), (5, 1548968), (8, 968105), (10, 774484), (20, 387242), (37, 209320), (40, 193621), (74, 104660), (148, 52330), (185, 41864), (296, 26165), (370, 20932), (740, 10466), (1480, 5233)]