20470010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2621}}^1$

素因数の和:2710

約数の個数: 32

約数和(自身を含む): 40777344

約数和(自身を除く): 20307334

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 142, 355, 710, 781, 1562, 2621, 3905, 5242, 7810, 13105, 26210, 28831, 57662, 144155, 186091, 288310, 372182, 930455, 1860910, 2047001, 4094002, 10235005, 20470010]

約数ペア:

[(1, 20470010), (2, 10235005), (5, 4094002), (10, 2047001), (11, 1860910), (22, 930455), (55, 372182), (71, 288310), (110, 186091), (142, 144155), (355, 57662), (710, 28831), (781, 26210), (1562, 13105), (2621, 7810), (3905, 5242)]