161457580

素因数分解:

$2^2\times 5^1\times {\mathrm{1831}}^1\times {\mathrm{4409}}^1$

素因数の和:6249

約数の個数: 24

約数和(自身を含む): 339323040

約数和(自身を除く): 177865460

約数列:

[1, 2, 4, 5, 10, 20, 1831, 3662, 4409, 7324, 8818, 9155, 17636, 18310, 22045, 36620, 44090, 88180, 8072879, 16145758, 32291516, 40364395, 80728790, 161457580]

約数ペア:

[(1, 161457580), (2, 80728790), (4, 40364395), (5, 32291516), (10, 16145758), (20, 8072879), (1831, 88180), (3662, 44090), (4409, 36620), (7324, 22045), (8818, 18310), (9155, 17636)]