25499680

素因数分解:

$2^5\times 5^1\times {\mathrm{197}}^1\times {\mathrm{809}}^1$

素因数の和:1021

約数の個数: 48

約数和(自身を含む): 60623640

約数和(自身を除く): 35123960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 197, 394, 788, 809, 985, 1576, 1618, 1970, 3152, 3236, 3940, 4045, 6304, 6472, 7880, 8090, 12944, 15760, 16180, 25888, 31520, 32360, 64720, 129440, 159373, 318746, 637492, 796865, 1274984, 1593730, 2549968, 3187460, 5099936, 6374920, 12749840, 25499680]

約数ペア:

[(1, 25499680), (2, 12749840), (4, 6374920), (5, 5099936), (8, 3187460), (10, 2549968), (16, 1593730), (20, 1274984), (32, 796865), (40, 637492), (80, 318746), (160, 159373), (197, 129440), (394, 64720), (788, 32360), (809, 31520), (985, 25888), (1576, 16180), (1618, 15760), (1970, 12944), (3152, 8090), (3236, 7880), (3940, 6472), (4045, 6304)]