199413320

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{45737}}^1$

素因数の和:45857

約数の個数: 32

約数和(自身を含む): 452806200

約数和(自身を除く): 253392880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 45737, 91474, 182948, 228685, 365896, 457370, 914740, 1829480, 4985333, 9970666, 19941332, 24926665, 39882664, 49853330, 99706660, 199413320]

約数ペア:

[(1, 199413320), (2, 99706660), (4, 49853330), (5, 39882664), (8, 24926665), (10, 19941332), (20, 9970666), (40, 4985333), (109, 1829480), (218, 914740), (436, 457370), (545, 365896), (872, 228685), (1090, 182948), (2180, 91474), (4360, 45737)]