25231760

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1601}}^1$

素因数の和:1811

約数の個数: 40

約数和(自身を含む): 58998456

約数和(自身を除く): 33766696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1601, 1970, 3152, 3202, 3940, 6404, 7880, 8005, 12808, 15760, 16010, 25616, 32020, 64040, 128080, 315397, 630794, 1261588, 1576985, 2523176, 3153970, 5046352, 6307940, 12615880, 25231760]

約数ペア:

[(1, 25231760), (2, 12615880), (4, 6307940), (5, 5046352), (8, 3153970), (10, 2523176), (16, 1576985), (20, 1261588), (40, 630794), (80, 315397), (197, 128080), (394, 64040), (788, 32020), (985, 25616), (1576, 16010), (1601, 15760), (1970, 12808), (3152, 8005), (3202, 7880), (3940, 6404)]