54940240

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15971}}^1$

素因数の和:16027

約数の個数: 40

約数和(自身を含む): 130714848

約数和(自身を除く): 75774608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 15971, 31942, 63884, 79855, 127768, 159710, 255536, 319420, 638840, 686753, 1277680, 1373506, 2747012, 3433765, 5494024, 6867530, 10988048, 13735060, 27470120, 54940240]

約数ペア:

[(1, 54940240), (2, 27470120), (4, 13735060), (5, 10988048), (8, 6867530), (10, 5494024), (16, 3433765), (20, 2747012), (40, 1373506), (43, 1277680), (80, 686753), (86, 638840), (172, 319420), (215, 255536), (344, 159710), (430, 127768), (688, 79855), (860, 63884), (1720, 31942), (3440, 15971)]