8820020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{853}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 20659968

約数和(自身を除く): 11839948

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 188, 220, 235, 470, 517, 853, 940, 1034, 1706, 2068, 2585, 3412, 4265, 5170, 8530, 9383, 10340, 17060, 18766, 37532, 40091, 46915, 80182, 93830, 160364, 187660, 200455, 400910, 441001, 801820, 882002, 1764004, 2205005, 4410010, 8820020]

約数ペア:

[(1, 8820020), (2, 4410010), (4, 2205005), (5, 1764004), (10, 882002), (11, 801820), (20, 441001), (22, 400910), (44, 200455), (47, 187660), (55, 160364), (94, 93830), (110, 80182), (188, 46915), (220, 40091), (235, 37532), (470, 18766), (517, 17060), (853, 10340), (940, 9383), (1034, 8530), (1706, 5170), (2068, 4265), (2585, 3412)]