55009040

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15991}}^1$

素因数の和:16047

約数の個数: 40

約数和(自身を含む): 130878528

約数和(自身を除く): 75869488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 15991, 31982, 63964, 79955, 127928, 159910, 255856, 319820, 639640, 687613, 1279280, 1375226, 2750452, 3438065, 5500904, 6876130, 11001808, 13752260, 27504520, 55009040]

約数ペア:

[(1, 55009040), (2, 27504520), (4, 13752260), (5, 11001808), (8, 6876130), (10, 5500904), (16, 3438065), (20, 2750452), (40, 1375226), (43, 1279280), (80, 687613), (86, 639640), (172, 319820), (215, 255856), (344, 159910), (430, 127928), (688, 79955), (860, 63964), (1720, 31982), (3440, 15991)]