80688080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{91691}}^1$

素因数の和:91715

約数の個数: 40

約数和(自身を含む): 204656544

約数和(自身を除く): 123968464

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 91691, 183382, 366764, 458455, 733528, 916910, 1008601, 1467056, 1833820, 2017202, 3667640, 4034404, 5043005, 7335280, 8068808, 10086010, 16137616, 20172020, 40344040, 80688080]

約数ペア:

[(1, 80688080), (2, 40344040), (4, 20172020), (5, 16137616), (8, 10086010), (10, 8068808), (11, 7335280), (16, 5043005), (20, 4034404), (22, 3667640), (40, 2017202), (44, 1833820), (55, 1467056), (80, 1008601), (88, 916910), (110, 733528), (176, 458455), (220, 366764), (440, 183382), (880, 91691)]