12615880

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1601}}^1$

素因数の和:1809

約数の個数: 32

約数和(自身を含む): 28547640

約数和(自身を除く): 15931760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1601, 1970, 3202, 3940, 6404, 7880, 8005, 12808, 16010, 32020, 64040, 315397, 630794, 1261588, 1576985, 2523176, 3153970, 6307940, 12615880]

約数ペア:

[(1, 12615880), (2, 6307940), (4, 3153970), (5, 2523176), (8, 1576985), (10, 1261588), (20, 630794), (40, 315397), (197, 64040), (394, 32020), (788, 16010), (985, 12808), (1576, 8005), (1601, 7880), (1970, 6404), (3202, 3940)]