123984272

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{407843}}^1$

素因数の和:407870

約数の個数: 20

約数和(自身を含む): 252863280

約数和(自身を除く): 128879008

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 407843, 815686, 1631372, 3262744, 6525488, 7749017, 15498034, 30996068, 61992136, 123984272]

約数ペア:

[(1, 123984272), (2, 61992136), (4, 30996068), (8, 15498034), (16, 7749017), (19, 6525488), (38, 3262744), (76, 1631372), (152, 815686), (304, 407843)]