128771680

素因数分解:

$2^5\times 5^1\times {\mathrm{804823}}^1$

素因数の和:804838

約数の個数: 24

約数和(自身を含む): 304223472

約数和(自身を除く): 175451792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 804823, 1609646, 3219292, 4024115, 6438584, 8048230, 12877168, 16096460, 25754336, 32192920, 64385840, 128771680]

約数ペア:

[(1, 128771680), (2, 64385840), (4, 32192920), (5, 25754336), (8, 16096460), (10, 12877168), (16, 8048230), (20, 6438584), (32, 4024115), (40, 3219292), (80, 1609646), (160, 804823)]