1980339215

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{217979}}^1$

素因数の和:218086

約数の個数: 16

約数和(自身を含む): 2511129600

約数和(自身を除く): 530790385

約数列:

[1, 5, 23, 79, 115, 395, 1817, 9085, 217979, 1089895, 5013517, 17220341, 25067585, 86101705, 396067843, 1980339215]

約数ペア:

[(1, 1980339215), (5, 396067843), (23, 86101705), (79, 25067585), (115, 17220341), (395, 5013517), (1817, 1089895), (9085, 217979)]