78395583

素因数分解:

$3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:507

約数の個数: 32

約数和(自身を含む): 121927680

約数和(自身を除く): 43532097

約数列:

[1, 3, 7, 21, 107, 139, 251, 321, 417, 749, 753, 973, 1757, 2247, 2919, 5271, 14873, 26857, 34889, 44619, 80571, 104111, 104667, 187999, 244223, 312333, 563997, 732669, 3733123, 11199369, 26131861, 78395583]

約数ペア:

[(1, 78395583), (3, 26131861), (7, 11199369), (21, 3733123), (107, 732669), (139, 563997), (251, 312333), (321, 244223), (417, 187999), (749, 104667), (753, 104111), (973, 80571), (1757, 44619), (2247, 34889), (2919, 26857), (5271, 14873)]