18571760

素因数分解:

$2^4\times 5^1\times {\mathrm{269}}^1\times {\mathrm{863}}^1$

素因数の和:1145

約数の個数: 40

約数和(自身を含む): 43390080

約数和(自身を除く): 24818320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 269, 538, 863, 1076, 1345, 1726, 2152, 2690, 3452, 4304, 4315, 5380, 6904, 8630, 10760, 13808, 17260, 21520, 34520, 69040, 232147, 464294, 928588, 1160735, 1857176, 2321470, 3714352, 4642940, 9285880, 18571760]

約数ペア:

[(1, 18571760), (2, 9285880), (4, 4642940), (5, 3714352), (8, 2321470), (10, 1857176), (16, 1160735), (20, 928588), (40, 464294), (80, 232147), (269, 69040), (538, 34520), (863, 21520), (1076, 17260), (1345, 13808), (1726, 10760), (2152, 8630), (2690, 6904), (3452, 5380), (4304, 4315)]