879721520

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{255733}}^1$

素因数の和:255789

約数の個数: 40

約数和(自身を含む): 2092927056

約数和(自身を除く): 1213205536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 255733, 511466, 1022932, 1278665, 2045864, 2557330, 4091728, 5114660, 10229320, 10996519, 20458640, 21993038, 43986076, 54982595, 87972152, 109965190, 175944304, 219930380, 439860760, 879721520]

約数ペア:

[(1, 879721520), (2, 439860760), (4, 219930380), (5, 175944304), (8, 109965190), (10, 87972152), (16, 54982595), (20, 43986076), (40, 21993038), (43, 20458640), (80, 10996519), (86, 10229320), (172, 5114660), (215, 4091728), (344, 2557330), (430, 2045864), (688, 1278665), (860, 1022932), (1720, 511466), (3440, 255733)]