4365520

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{277}}^1$

素因数の和:487

約数の個数: 40

約数和(自身を含む): 10238184

約数和(自身を除く): 5872664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 277, 394, 554, 788, 985, 1108, 1385, 1576, 1970, 2216, 2770, 3152, 3940, 4432, 5540, 7880, 11080, 15760, 22160, 54569, 109138, 218276, 272845, 436552, 545690, 873104, 1091380, 2182760, 4365520]

約数ペア:

[(1, 4365520), (2, 2182760), (4, 1091380), (5, 873104), (8, 545690), (10, 436552), (16, 272845), (20, 218276), (40, 109138), (80, 54569), (197, 22160), (277, 15760), (394, 11080), (554, 7880), (788, 5540), (985, 4432), (1108, 3940), (1385, 3152), (1576, 2770), (1970, 2216)]