85705220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^2\times {\mathrm{541}}^1$

素因数の和:728

約数の個数: 36

約数和(自身を含む): 182362404

約数和(自身を除く): 96657184

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 541, 890, 1082, 1780, 2164, 2705, 5410, 7921, 10820, 15842, 31684, 39605, 48149, 79210, 96298, 158420, 192596, 240745, 481490, 962980, 4285261, 8570522, 17141044, 21426305, 42852610, 85705220]

約数ペア:

[(1, 85705220), (2, 42852610), (4, 21426305), (5, 17141044), (10, 8570522), (20, 4285261), (89, 962980), (178, 481490), (356, 240745), (445, 192596), (541, 158420), (890, 96298), (1082, 79210), (1780, 48149), (2164, 39605), (2705, 31684), (5410, 15842), (7921, 10820)]