20384440

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22157}}^1$

素因数の和:22191

約数の個数: 32

約数和(自身を含む): 47861280

約数和(自身を除く): 27476840

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22157, 44314, 88628, 110785, 177256, 221570, 443140, 509611, 886280, 1019222, 2038444, 2548055, 4076888, 5096110, 10192220, 20384440]

約数ペア:

[(1, 20384440), (2, 10192220), (4, 5096110), (5, 4076888), (8, 2548055), (10, 2038444), (20, 1019222), (23, 886280), (40, 509611), (46, 443140), (92, 221570), (115, 177256), (184, 110785), (230, 88628), (460, 44314), (920, 22157)]