661020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{479}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 1935360

約数和(自身を除く): 1274340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 479, 690, 958, 1380, 1437, 1916, 2395, 2874, 4790, 5748, 7185, 9580, 11017, 14370, 22034, 28740, 33051, 44068, 55085, 66102, 110170, 132204, 165255, 220340, 330510, 661020]

約数ペア:

[(1, 661020), (2, 330510), (3, 220340), (4, 165255), (5, 132204), (6, 110170), (10, 66102), (12, 55085), (15, 44068), (20, 33051), (23, 28740), (30, 22034), (46, 14370), (60, 11017), (69, 9580), (92, 7185), (115, 5748), (138, 4790), (230, 2874), (276, 2395), (345, 1916), (460, 1437), (479, 1380), (690, 958)]