79890020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{570643}}^1$

素因数の和:570659

約数の個数: 24

約数和(自身を含む): 191736384

約数和(自身を除く): 111846364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 570643, 1141286, 2282572, 2853215, 3994501, 5706430, 7989002, 11412860, 15978004, 19972505, 39945010, 79890020]

約数ペア:

[(1, 79890020), (2, 39945010), (4, 19972505), (5, 15978004), (7, 11412860), (10, 7989002), (14, 5706430), (20, 3994501), (28, 2853215), (35, 2282572), (70, 1141286), (140, 570643)]