15772880

素因数分解:

$2^4\times 5^1\times {\mathrm{197161}}^1$

素因数の和:197174

約数の個数: 20

約数和(自身を含む): 36672132

約数和(自身を除く): 20899252

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197161, 394322, 788644, 985805, 1577288, 1971610, 3154576, 3943220, 7886440, 15772880]

約数ペア:

[(1, 15772880), (2, 7886440), (4, 3943220), (5, 3154576), (8, 1971610), (10, 1577288), (16, 985805), (20, 788644), (40, 394322), (80, 197161)]