19902190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{25847}}^1$

素因数の和:25872

約数の個数: 32

約数和(自身を含む): 44665344

約数和(自身を除く): 24763154

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 25847, 51694, 129235, 180929, 258470, 284317, 361858, 568634, 904645, 1421585, 1809290, 1990219, 2843170, 3980438, 9951095, 19902190]

約数ペア:

[(1, 19902190), (2, 9951095), (5, 3980438), (7, 2843170), (10, 1990219), (11, 1809290), (14, 1421585), (22, 904645), (35, 568634), (55, 361858), (70, 284317), (77, 258470), (110, 180929), (154, 129235), (385, 51694), (770, 25847)]