20090200

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7727}}^1$

素因数の和:7756

約数の個数: 48

約数和(自身を含む): 50309280

約数和(自身を除く): 30219080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 7727, 15454, 30908, 38635, 61816, 77270, 100451, 154540, 193175, 200902, 309080, 386350, 401804, 502255, 772700, 803608, 1004510, 1545400, 2009020, 2511275, 4018040, 5022550, 10045100, 20090200]

約数ペア:

[(1, 20090200), (2, 10045100), (4, 5022550), (5, 4018040), (8, 2511275), (10, 2009020), (13, 1545400), (20, 1004510), (25, 803608), (26, 772700), (40, 502255), (50, 401804), (52, 386350), (65, 309080), (100, 200902), (104, 193175), (130, 154540), (200, 100451), (260, 77270), (325, 61816), (520, 38635), (650, 30908), (1300, 15454), (2600, 7727)]