679388

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:221

約数の個数: 24

約数和(自身を含む): 1284192

約数和(自身を除く): 604804

約数列:

[1, 2, 4, 17, 34, 68, 97, 103, 194, 206, 388, 412, 1649, 1751, 3298, 3502, 6596, 7004, 9991, 19982, 39964, 169847, 339694, 679388]

約数ペア:

[(1, 679388), (2, 339694), (4, 169847), (17, 39964), (34, 19982), (68, 9991), (97, 7004), (103, 6596), (194, 3502), (206, 3298), (388, 1751), (412, 1649)]