130228820

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{33053}}^1$

素因数の和:33259

約数の個数: 24

約数和(自身を含む): 274877064

約数和(自身を除く): 144648244

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 33053, 66106, 132212, 165265, 330530, 661060, 6511441, 13022882, 26045764, 32557205, 65114410, 130228820]

約数ペア:

[(1, 130228820), (2, 65114410), (4, 32557205), (5, 26045764), (10, 13022882), (20, 6511441), (197, 661060), (394, 330530), (788, 165265), (985, 132212), (1970, 66106), (3940, 33053)]