387869360

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{24611}}^1$

素因数の和:24821

約数の個数: 40

約数和(自身を含む): 906410736

約数和(自身を除く): 518541376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 7880, 15760, 24611, 49222, 98444, 123055, 196888, 246110, 393776, 492220, 984440, 1968880, 4848367, 9696734, 19393468, 24241835, 38786936, 48483670, 77573872, 96967340, 193934680, 387869360]

約数ペア:

[(1, 387869360), (2, 193934680), (4, 96967340), (5, 77573872), (8, 48483670), (10, 38786936), (16, 24241835), (20, 19393468), (40, 9696734), (80, 4848367), (197, 1968880), (394, 984440), (788, 492220), (985, 393776), (1576, 246110), (1970, 196888), (3152, 123055), (3940, 98444), (7880, 49222), (15760, 24611)]