681872

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{2243}}^1$

素因数の和:2270

約数の個数: 20

約数和(自身を含む): 1391280

約数和(自身を除く): 709408

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 2243, 4486, 8972, 17944, 35888, 42617, 85234, 170468, 340936, 681872]

約数ペア:

[(1, 681872), (2, 340936), (4, 170468), (8, 85234), (16, 42617), (19, 35888), (38, 17944), (76, 8972), (152, 4486), (304, 2243)]