20217921470

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{359}}^1\times {\mathrm{8011}}^1$

素因数の和:8433

約数の個数: 64

約数和(自身を含む): 39457497600

約数和(自身を除く): 19239576130

約数列:

[1, 2, 5, 10, 19, 37, 38, 74, 95, 185, 190, 359, 370, 703, 718, 1406, 1795, 3515, 3590, 6821, 7030, 8011, 13283, 13642, 16022, 26566, 34105, 40055, 66415, 68210, 80110, 132830, 152209, 252377, 296407, 304418, 504754, 592814, 761045, 1261885, 1482035, 1522090, 2523770, 2875949, 2964070, 5631733, 5751898, 11263466, 14379745, 28158665, 28759490, 54643031, 56317330, 106410113, 109286062, 212820226, 273215155, 532050565, 546430310, 1064101130, 2021792147, 4043584294, 10108960735, 20217921470]

約数ペア:

[(1, 20217921470), (2, 10108960735), (5, 4043584294), (10, 2021792147), (19, 1064101130), (37, 546430310), (38, 532050565), (74, 273215155), (95, 212820226), (185, 109286062), (190, 106410113), (359, 56317330), (370, 54643031), (703, 28759490), (718, 28158665), (1406, 14379745), (1795, 11263466), (3515, 5751898), (3590, 5631733), (6821, 2964070), (7030, 2875949), (8011, 2523770), (13283, 1522090), (13642, 1482035), (16022, 1261885), (26566, 761045), (34105, 592814), (40055, 504754), (66415, 304418), (68210, 296407), (80110, 252377), (132830, 152209)]