20805180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1087}}^1$

素因数の和:1139

約数の個数: 96

約数和(自身を含む): 65802240

約数和(自身を除く): 44997060

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 29, 30, 33, 44, 55, 58, 60, 66, 87, 110, 116, 132, 145, 165, 174, 220, 290, 319, 330, 348, 435, 580, 638, 660, 870, 957, 1087, 1276, 1595, 1740, 1914, 2174, 3190, 3261, 3828, 4348, 4785, 5435, 6380, 6522, 9570, 10870, 11957, 13044, 16305, 19140, 21740, 23914, 31523, 32610, 35871, 47828, 59785, 63046, 65220, 71742, 94569, 119570, 126092, 143484, 157615, 179355, 189138, 239140, 315230, 346753, 358710, 378276, 472845, 630460, 693506, 717420, 945690, 1040259, 1387012, 1733765, 1891380, 2080518, 3467530, 4161036, 5201295, 6935060, 10402590, 20805180]

約数ペア:

[(1, 20805180), (2, 10402590), (3, 6935060), (4, 5201295), (5, 4161036), (6, 3467530), (10, 2080518), (11, 1891380), (12, 1733765), (15, 1387012), (20, 1040259), (22, 945690), (29, 717420), (30, 693506), (33, 630460), (44, 472845), (55, 378276), (58, 358710), (60, 346753), (66, 315230), (87, 239140), (110, 189138), (116, 179355), (132, 157615), (145, 143484), (165, 126092), (174, 119570), (220, 94569), (290, 71742), (319, 65220), (330, 63046), (348, 59785), (435, 47828), (580, 35871), (638, 32610), (660, 31523), (870, 23914), (957, 21740), (1087, 19140), (1276, 16305), (1595, 13044), (1740, 11957), (1914, 10870), (2174, 9570), (3190, 6522), (3261, 6380), (3828, 5435), (4348, 4785)]