72123344

素因数分解:

$2^4\times {\mathrm{251}}^1\times {\mathrm{17959}}^1$

素因数の和:18218

約数の個数: 20

約数和(自身を含む): 140303520

約数和(自身を除く): 68180176

約数列:

[1, 2, 4, 8, 16, 251, 502, 1004, 2008, 4016, 17959, 35918, 71836, 143672, 287344, 4507709, 9015418, 18030836, 36061672, 72123344]

約数ペア:

[(1, 72123344), (2, 36061672), (4, 18030836), (8, 9015418), (16, 4507709), (251, 287344), (502, 143672), (1004, 71836), (2008, 35918), (4016, 17959)]