1296195440

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{376801}}^1$

素因数の和:376857

約数の個数: 40

約数和(自身を含む): 3083747568

約数和(自身を除く): 1787552128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 376801, 753602, 1507204, 1884005, 3014408, 3768010, 6028816, 7536020, 15072040, 16202443, 30144080, 32404886, 64809772, 81012215, 129619544, 162024430, 259239088, 324048860, 648097720, 1296195440]

約数ペア:

[(1, 1296195440), (2, 648097720), (4, 324048860), (5, 259239088), (8, 162024430), (10, 129619544), (16, 81012215), (20, 64809772), (40, 32404886), (43, 30144080), (80, 16202443), (86, 15072040), (172, 7536020), (215, 6028816), (344, 3768010), (430, 3014408), (688, 1884005), (860, 1507204), (1720, 753602), (3440, 376801)]