18959990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6299}}^1$

素因数の和:6356

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 20956810

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 86, 215, 301, 430, 602, 1505, 3010, 6299, 12598, 31495, 44093, 62990, 88186, 220465, 270857, 440930, 541714, 1354285, 1895999, 2708570, 3791998, 9479995, 18959990]

約数ペア:

[(1, 18959990), (2, 9479995), (5, 3791998), (7, 2708570), (10, 1895999), (14, 1354285), (35, 541714), (43, 440930), (70, 270857), (86, 220465), (215, 88186), (301, 62990), (430, 44093), (602, 31495), (1505, 12598), (3010, 6299)]