20204980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53171}}^1$

素因数の和:53199

約数の個数: 24

約数和(自身を含む): 44664480

約数和(自身を除く): 24459500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 53171, 106342, 212684, 265855, 531710, 1010249, 1063420, 2020498, 4040996, 5051245, 10102490, 20204980]

約数ペア:

[(1, 20204980), (2, 10102490), (4, 5051245), (5, 4040996), (10, 2020498), (19, 1063420), (20, 1010249), (38, 531710), (76, 265855), (95, 212684), (190, 106342), (380, 53171)]