678488974

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{74707}}^1$

素因数の和:74967

約数の個数: 16

約数和(自身を含む): 1075795200

約数和(自身を除く): 397306226

約数列:

[1, 2, 19, 38, 239, 478, 4541, 9082, 74707, 149414, 1419433, 2838866, 17854973, 35709946, 339244487, 678488974]

約数ペア:

[(1, 678488974), (2, 339244487), (19, 35709946), (38, 17854973), (239, 2838866), (478, 1419433), (4541, 149414), (9082, 74707)]