678695216

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{2495203}}^1$

素因数の和:2495228

約数の個数: 20

約数和(自身を含む): 1392323832

約数和(自身を除く): 713628616

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 2495203, 4990406, 9980812, 19961624, 39923248, 42418451, 84836902, 169673804, 339347608, 678695216]

約数ペア:

[(1, 678695216), (2, 339347608), (4, 169673804), (8, 84836902), (16, 42418451), (17, 39923248), (34, 19961624), (68, 9980812), (136, 4990406), (272, 2495203)]