20808280832

素因数分解:

$2^8\times {\mathrm{103}}^1\times {\mathrm{789149}}^1$

素因数の和:789268

約数の個数: 36

約数和(自身を含む): 41938587600

約数和(自身を除く): 21130306768

約数列:

[1, 2, 4, 8, 16, 32, 64, 103, 128, 206, 256, 412, 824, 1648, 3296, 6592, 13184, 26368, 789149, 1578298, 3156596, 6313192, 12626384, 25252768, 50505536, 81282347, 101011072, 162564694, 202022144, 325129388, 650258776, 1300517552, 2601035104, 5202070208, 10404140416, 20808280832]

約数ペア:

[(1, 20808280832), (2, 10404140416), (4, 5202070208), (8, 2601035104), (16, 1300517552), (32, 650258776), (64, 325129388), (103, 202022144), (128, 162564694), (206, 101011072), (256, 81282347), (412, 50505536), (824, 25252768), (1648, 12626384), (3296, 6313192), (6592, 3156596), (13184, 1578298), (26368, 789149)]