7819660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 17629920

約数和(自身を除く): 9810260

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 109, 170, 211, 218, 340, 422, 436, 545, 844, 1055, 1090, 1853, 2110, 2180, 3587, 3706, 4220, 7174, 7412, 9265, 14348, 17935, 18530, 22999, 35870, 37060, 45998, 71740, 91996, 114995, 229990, 390983, 459980, 781966, 1563932, 1954915, 3909830, 7819660]

約数ペア:

[(1, 7819660), (2, 3909830), (4, 1954915), (5, 1563932), (10, 781966), (17, 459980), (20, 390983), (34, 229990), (68, 114995), (85, 91996), (109, 71740), (170, 45998), (211, 37060), (218, 35870), (340, 22999), (422, 18530), (436, 17935), (545, 14348), (844, 9265), (1055, 7412), (1090, 7174), (1853, 4220), (2110, 3706), (2180, 3587)]