20072740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{523}}^1$

素因数の和:652

約数の個数: 48

約数和(自身を含む): 44896320

約数和(自身を除く): 24823580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 101, 190, 202, 380, 404, 505, 523, 1010, 1046, 1919, 2020, 2092, 2615, 3838, 5230, 7676, 9595, 9937, 10460, 19190, 19874, 38380, 39748, 49685, 52823, 99370, 105646, 198740, 211292, 264115, 528230, 1003637, 1056460, 2007274, 4014548, 5018185, 10036370, 20072740]

約数ペア:

[(1, 20072740), (2, 10036370), (4, 5018185), (5, 4014548), (10, 2007274), (19, 1056460), (20, 1003637), (38, 528230), (76, 264115), (95, 211292), (101, 198740), (190, 105646), (202, 99370), (380, 52823), (404, 49685), (505, 39748), (523, 38380), (1010, 19874), (1046, 19190), (1919, 10460), (2020, 9937), (2092, 9595), (2615, 7676), (3838, 5230)]