68808440

素因数分解:

$2^3\times 5^1\times {\mathrm{1720211}}^1$

素因数の和:1720222

約数の個数: 16

約数和(自身を含む): 154819080

約数和(自身を除く): 86010640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1720211, 3440422, 6880844, 8601055, 13761688, 17202110, 34404220, 68808440]

約数ペア:

[(1, 68808440), (2, 34404220), (4, 17202110), (5, 13761688), (8, 8601055), (10, 6880844), (20, 3440422), (40, 1720211)]