78639884

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{276901}}^1$

素因数の和:276976

約数の個数: 12

約数和(自身を含む): 139558608

約数和(自身を除く): 60918724

約数列:

[1, 2, 4, 71, 142, 284, 276901, 553802, 1107604, 19659971, 39319942, 78639884]

約数ペア:

[(1, 78639884), (2, 39319942), (4, 19659971), (71, 1107604), (142, 553802), (284, 276901)]