680816

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{2503}}^1$

素因数の和:2528

約数の個数: 20

約数和(自身を含む): 1397232

約数和(自身を除く): 716416

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 2503, 5006, 10012, 20024, 40048, 42551, 85102, 170204, 340408, 680816]

約数ペア:

[(1, 680816), (2, 340408), (4, 170204), (8, 85102), (16, 42551), (17, 40048), (34, 20024), (68, 10012), (136, 5006), (272, 2503)]