1745420

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{443}}^1$

素因数の和:649

約数の個数: 24

約数和(自身を含む): 3692304

約数和(自身を除く): 1946884

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 443, 788, 886, 985, 1772, 1970, 2215, 3940, 4430, 8860, 87271, 174542, 349084, 436355, 872710, 1745420]

約数ペア:

[(1, 1745420), (2, 872710), (4, 436355), (5, 349084), (10, 174542), (20, 87271), (197, 8860), (394, 4430), (443, 3940), (788, 2215), (886, 1970), (985, 1772)]