20297290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3631}}^1$

素因数の和:3694

約数の個数: 32

約数和(自身を含む): 40271616

約数和(自身を除く): 19974326

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 430, 559, 1118, 2795, 3631, 5590, 7262, 18155, 36310, 47203, 94406, 156133, 236015, 312266, 472030, 780665, 1561330, 2029729, 4059458, 10148645, 20297290]

約数ペア:

[(1, 20297290), (2, 10148645), (5, 4059458), (10, 2029729), (13, 1561330), (26, 780665), (43, 472030), (65, 312266), (86, 236015), (130, 156133), (215, 94406), (430, 47203), (559, 36310), (1118, 18155), (2795, 7262), (3631, 5590)]