20199821215

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1979}}^1\times {\mathrm{15349}}^1$

素因数の和:17359

約数の個数: 32

約数和(自身を含む): 29177280000

約数和(自身を除く): 8977458785

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 1979, 9895, 13853, 15349, 37601, 69265, 76745, 107443, 188005, 263207, 291631, 537215, 1316035, 1458155, 2041417, 10207085, 30375671, 151878355, 212629697, 577137749, 1063148485, 2885688745, 4039964243, 20199821215]

約数ペア:

[(1, 20199821215), (5, 4039964243), (7, 2885688745), (19, 1063148485), (35, 577137749), (95, 212629697), (133, 151878355), (665, 30375671), (1979, 10207085), (9895, 2041417), (13853, 1458155), (15349, 1316035), (37601, 537215), (69265, 291631), (76745, 263207), (107443, 188005)]