8720620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{433}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 19686240

約数和(自身を除く): 10965620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 76, 95, 106, 190, 212, 265, 380, 433, 530, 866, 1007, 1060, 1732, 2014, 2165, 4028, 4330, 5035, 8227, 8660, 10070, 16454, 20140, 22949, 32908, 41135, 45898, 82270, 91796, 114745, 164540, 229490, 436031, 458980, 872062, 1744124, 2180155, 4360310, 8720620]

約数ペア:

[(1, 8720620), (2, 4360310), (4, 2180155), (5, 1744124), (10, 872062), (19, 458980), (20, 436031), (38, 229490), (53, 164540), (76, 114745), (95, 91796), (106, 82270), (190, 45898), (212, 41135), (265, 32908), (380, 22949), (433, 20140), (530, 16454), (866, 10070), (1007, 8660), (1060, 8227), (1732, 5035), (2014, 4330), (2165, 4028)]