18723280

素因数分解:

$2^4\times 5^1\times {\mathrm{283}}^1\times {\mathrm{827}}^1$

素因数の和:1123

約数の個数: 40

約数和(自身を含む): 43738272

約数和(自身を除く): 25014992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 283, 566, 827, 1132, 1415, 1654, 2264, 2830, 3308, 4135, 4528, 5660, 6616, 8270, 11320, 13232, 16540, 22640, 33080, 66160, 234041, 468082, 936164, 1170205, 1872328, 2340410, 3744656, 4680820, 9361640, 18723280]

約数ペア:

[(1, 18723280), (2, 9361640), (4, 4680820), (5, 3744656), (8, 2340410), (10, 1872328), (16, 1170205), (20, 936164), (40, 468082), (80, 234041), (283, 66160), (566, 33080), (827, 22640), (1132, 16540), (1415, 13232), (1654, 11320), (2264, 8270), (2830, 6616), (3308, 5660), (4135, 4528)]