81220144

素因数分解:

$2^4\times {\mathrm{401}}^1\times {\mathrm{12659}}^1$

素因数の和:13068

約数の個数: 20

約数和(自身を含む): 157768920

約数和(自身を除く): 76548776

約数列:

[1, 2, 4, 8, 16, 401, 802, 1604, 3208, 6416, 12659, 25318, 50636, 101272, 202544, 5076259, 10152518, 20305036, 40610072, 81220144]

約数ペア:

[(1, 81220144), (2, 40610072), (4, 20305036), (8, 10152518), (16, 5076259), (401, 202544), (802, 101272), (1604, 50636), (3208, 25318), (6416, 12659)]