20166990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1039}}^1$

素因数の和:1696

約数の個数: 32

約数和(自身を含む): 48522240

約数和(自身を除く): 28355250

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 647, 1039, 1294, 1941, 2078, 3117, 3235, 3882, 5195, 6234, 6470, 9705, 10390, 15585, 19410, 31170, 672233, 1344466, 2016699, 3361165, 4033398, 6722330, 10083495, 20166990]

約数ペア:

[(1, 20166990), (2, 10083495), (3, 6722330), (5, 4033398), (6, 3361165), (10, 2016699), (15, 1344466), (30, 672233), (647, 31170), (1039, 19410), (1294, 15585), (1941, 10390), (2078, 9705), (3117, 6470), (3235, 6234), (3882, 5195)]