29903920

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8693}}^1$

素因数の和:8749

約数の個数: 40

約数和(自身を含む): 71151696

約数和(自身を除く): 41247776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 8693, 17386, 34772, 43465, 69544, 86930, 139088, 173860, 347720, 373799, 695440, 747598, 1495196, 1868995, 2990392, 3737990, 5980784, 7475980, 14951960, 29903920]

約数ペア:

[(1, 29903920), (2, 14951960), (4, 7475980), (5, 5980784), (8, 3737990), (10, 2990392), (16, 1868995), (20, 1495196), (40, 747598), (43, 695440), (80, 373799), (86, 347720), (172, 173860), (215, 139088), (344, 86930), (430, 69544), (688, 43465), (860, 34772), (1720, 17386), (3440, 8693)]