8989220

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 19692288

約数和(自身を除く): 10703068

約数列:

[1, 2, 4, 5, 10, 20, 47, 73, 94, 131, 146, 188, 235, 262, 292, 365, 470, 524, 655, 730, 940, 1310, 1460, 2620, 3431, 6157, 6862, 9563, 12314, 13724, 17155, 19126, 24628, 30785, 34310, 38252, 47815, 61570, 68620, 95630, 123140, 191260, 449461, 898922, 1797844, 2247305, 4494610, 8989220]

約数ペア:

[(1, 8989220), (2, 4494610), (4, 2247305), (5, 1797844), (10, 898922), (20, 449461), (47, 191260), (73, 123140), (94, 95630), (131, 68620), (146, 61570), (188, 47815), (235, 38252), (262, 34310), (292, 30785), (365, 24628), (470, 19126), (524, 17155), (655, 13724), (730, 12314), (940, 9563), (1310, 6862), (1460, 6157), (2620, 3431)]