18841480

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{9613}}^1$

素因数の和:9638

約数の個数: 48

約数和(自身を含む): 49319820

約数和(自身を除く): 30478340

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 9613, 19226, 38452, 48065, 67291, 76904, 96130, 134582, 192260, 269164, 336455, 384520, 471037, 538328, 672910, 942074, 1345820, 1884148, 2355185, 2691640, 3768296, 4710370, 9420740, 18841480]

約数ペア:

[(1, 18841480), (2, 9420740), (4, 4710370), (5, 3768296), (7, 2691640), (8, 2355185), (10, 1884148), (14, 1345820), (20, 942074), (28, 672910), (35, 538328), (40, 471037), (49, 384520), (56, 336455), (70, 269164), (98, 192260), (140, 134582), (196, 96130), (245, 76904), (280, 67291), (392, 48065), (490, 38452), (980, 19226), (1960, 9613)]