689996

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:233

約数の個数: 24

約数和(自身を含む): 1305360

約数和(自身を除く): 615364

約数列:

[1, 2, 4, 17, 34, 68, 73, 139, 146, 278, 292, 556, 1241, 2363, 2482, 4726, 4964, 9452, 10147, 20294, 40588, 172499, 344998, 689996]

約数ペア:

[(1, 689996), (2, 344998), (4, 172499), (17, 40588), (34, 20294), (68, 10147), (73, 9452), (139, 4964), (146, 4726), (278, 2482), (292, 2363), (556, 1241)]