68811280

素因数分解:

$2^4\times 5^1\times {\mathrm{281}}^1\times {\mathrm{3061}}^1$

素因数の和:3355

約数の個数: 40

約数和(自身を含む): 160608024

約数和(自身を除く): 91796744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 281, 562, 1124, 1405, 2248, 2810, 3061, 4496, 5620, 6122, 11240, 12244, 15305, 22480, 24488, 30610, 48976, 61220, 122440, 244880, 860141, 1720282, 3440564, 4300705, 6881128, 8601410, 13762256, 17202820, 34405640, 68811280]

約数ペア:

[(1, 68811280), (2, 34405640), (4, 17202820), (5, 13762256), (8, 8601410), (10, 6881128), (16, 4300705), (20, 3440564), (40, 1720282), (80, 860141), (281, 244880), (562, 122440), (1124, 61220), (1405, 48976), (2248, 30610), (2810, 24488), (3061, 22480), (4496, 15305), (5620, 12244), (6122, 11240)]