20804536528

素因数分解:

$2^4\times {\mathrm{257}}^1\times {\mathrm{1999}}^1\times {\mathrm{2531}}^1$

素因数の和:4795

約数の個数: 40

約数和(自身を含む): 40501872000

約数和(自身を除く): 19697335472

約数列:

[1, 2, 4, 8, 16, 257, 514, 1028, 1999, 2056, 2531, 3998, 4112, 5062, 7996, 10124, 15992, 20248, 31984, 40496, 513743, 650467, 1027486, 1300934, 2054972, 2601868, 4109944, 5059469, 5203736, 8219888, 10118938, 10407472, 20237876, 40475752, 80951504, 1300283533, 2600567066, 5201134132, 10402268264, 20804536528]

約数ペア:

[(1, 20804536528), (2, 10402268264), (4, 5201134132), (8, 2600567066), (16, 1300283533), (257, 80951504), (514, 40475752), (1028, 20237876), (1999, 10407472), (2056, 10118938), (2531, 8219888), (3998, 5203736), (4112, 5059469), (5062, 4109944), (7996, 2601868), (10124, 2054972), (15992, 1300934), (20248, 1027486), (31984, 650467), (40496, 513743)]