199980284

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{90407}}^1$

素因数の和:90497

約数の個数: 24

約数和(自身を含む): 405027840

約数和(自身を除く): 205047556

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 553, 1106, 2212, 90407, 180814, 361628, 632849, 1265698, 2531396, 7142153, 14284306, 28568612, 49995071, 99990142, 199980284]

約数ペア:

[(1, 199980284), (2, 99990142), (4, 49995071), (7, 28568612), (14, 14284306), (28, 7142153), (79, 2531396), (158, 1265698), (316, 632849), (553, 361628), (1106, 180814), (2212, 90407)]