20038330

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:271

約数の個数: 48

約数和(自身を含む): 39844224

約数和(自身を除く): 19805894

約数列:

[1, 2, 5, 10, 13, 26, 65, 71, 130, 142, 167, 169, 334, 338, 355, 710, 835, 845, 923, 1670, 1690, 1846, 2171, 4342, 4615, 9230, 10855, 11857, 11999, 21710, 23714, 23998, 28223, 56446, 59285, 59995, 118570, 119990, 141115, 154141, 282230, 308282, 770705, 1541410, 2003833, 4007666, 10019165, 20038330]

約数ペア:

[(1, 20038330), (2, 10019165), (5, 4007666), (10, 2003833), (13, 1541410), (26, 770705), (65, 308282), (71, 282230), (130, 154141), (142, 141115), (167, 119990), (169, 118570), (334, 59995), (338, 59285), (355, 56446), (710, 28223), (835, 23998), (845, 23714), (923, 21710), (1670, 11999), (1690, 11857), (1846, 10855), (2171, 9230), (4342, 4615)]