20168020912

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{224969}}^1$

素因数の和:225421

約数の個数: 40

約数和(自身を含む): 42179175360

約数和(自身を除く): 22011154448

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 431, 862, 1724, 3448, 5603, 6896, 11206, 22412, 44824, 89648, 224969, 449938, 899876, 1799752, 2924597, 3599504, 5849194, 11698388, 23396776, 46793552, 96961639, 193923278, 387846556, 775693112, 1260501307, 1551386224, 2521002614, 5042005228, 10084010456, 20168020912]

約数ペア:

[(1, 20168020912), (2, 10084010456), (4, 5042005228), (8, 2521002614), (13, 1551386224), (16, 1260501307), (26, 775693112), (52, 387846556), (104, 193923278), (208, 96961639), (431, 46793552), (862, 23396776), (1724, 11698388), (3448, 5849194), (5603, 3599504), (6896, 2924597), (11206, 1799752), (22412, 899876), (44824, 449938), (89648, 224969)]