81809816

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{2273}}^1$

素因数の和:2699

約数の個数: 32

約数和(自身を含む): 167821200

約数和(自身を除く): 86011384

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 409, 818, 1636, 2273, 3272, 4499, 4546, 8998, 9092, 17996, 18184, 25003, 35992, 50006, 100012, 200024, 929657, 1859314, 3718628, 7437256, 10226227, 20452454, 40904908, 81809816]

約数ペア:

[(1, 81809816), (2, 40904908), (4, 20452454), (8, 10226227), (11, 7437256), (22, 3718628), (44, 1859314), (88, 929657), (409, 200024), (818, 100012), (1636, 50006), (2273, 35992), (3272, 25003), (4499, 18184), (4546, 17996), (8998, 9092)]