20960480

素因数分解:

$2^5\times 5^1\times {\mathrm{269}}^1\times {\mathrm{487}}^1$

素因数の和:771

約数の個数: 48

約数和(自身を含む): 49805280

約数和(自身を除く): 28844800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 269, 487, 538, 974, 1076, 1345, 1948, 2152, 2435, 2690, 3896, 4304, 4870, 5380, 7792, 8608, 9740, 10760, 15584, 19480, 21520, 38960, 43040, 77920, 131003, 262006, 524012, 655015, 1048024, 1310030, 2096048, 2620060, 4192096, 5240120, 10480240, 20960480]

約数ペア:

[(1, 20960480), (2, 10480240), (4, 5240120), (5, 4192096), (8, 2620060), (10, 2096048), (16, 1310030), (20, 1048024), (32, 655015), (40, 524012), (80, 262006), (160, 131003), (269, 77920), (487, 43040), (538, 38960), (974, 21520), (1076, 19480), (1345, 15584), (1948, 10760), (2152, 9740), (2435, 8608), (2690, 7792), (3896, 5380), (4304, 4870)]