491961040

素因数分解:

$2^4\times 5^1\times {\mathrm{2237}}^1\times {\mathrm{2749}}^1$

素因数の和:4999

約数の個数: 40

約数和(自身を含む): 1144737000

約数和(自身を除く): 652775960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2237, 2749, 4474, 5498, 8948, 10996, 11185, 13745, 17896, 21992, 22370, 27490, 35792, 43984, 44740, 54980, 89480, 109960, 178960, 219920, 6149513, 12299026, 24598052, 30747565, 49196104, 61495130, 98392208, 122990260, 245980520, 491961040]

約数ペア:

[(1, 491961040), (2, 245980520), (4, 122990260), (5, 98392208), (8, 61495130), (10, 49196104), (16, 30747565), (20, 24598052), (40, 12299026), (80, 6149513), (2237, 219920), (2749, 178960), (4474, 109960), (5498, 89480), (8948, 54980), (10996, 44740), (11185, 43984), (13745, 35792), (17896, 27490), (21992, 22370)]