1384403920

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{402443}}^1$

素因数の和:402499

約数の個数: 40

約数和(自身を含む): 3293601696

約数和(自身を除く): 1909197776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 402443, 804886, 1609772, 2012215, 3219544, 4024430, 6439088, 8048860, 16097720, 17305049, 32195440, 34610098, 69220196, 86525245, 138440392, 173050490, 276880784, 346100980, 692201960, 1384403920]

約数ペア:

[(1, 1384403920), (2, 692201960), (4, 346100980), (5, 276880784), (8, 173050490), (10, 138440392), (16, 86525245), (20, 69220196), (40, 34610098), (43, 32195440), (80, 17305049), (86, 16097720), (172, 8048860), (215, 6439088), (344, 4024430), (430, 3219544), (688, 2012215), (860, 1609772), (1720, 804886), (3440, 402443)]