201089990

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{1933}}^1$

素因数の和:2144

約数の個数: 32

約数和(自身を含む): 369285696

約数和(自身を除く): 168195706

約数列:

[1, 2, 5, 10, 101, 103, 202, 206, 505, 515, 1010, 1030, 1933, 3866, 9665, 10403, 19330, 20806, 52015, 104030, 195233, 199099, 390466, 398198, 976165, 995495, 1952330, 1990990, 20108999, 40217998, 100544995, 201089990]

約数ペア:

[(1, 201089990), (2, 100544995), (5, 40217998), (10, 20108999), (101, 1990990), (103, 1952330), (202, 995495), (206, 976165), (505, 398198), (515, 390466), (1010, 199099), (1030, 195233), (1933, 104030), (3866, 52015), (9665, 20806), (10403, 19330)]