28621305

素因数分解:

$3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 51367680

約数和(自身を除く): 22746375

約数列:

[1, 3, 5, 9, 15, 45, 79, 83, 97, 237, 249, 291, 395, 415, 485, 711, 747, 873, 1185, 1245, 1455, 3555, 3735, 4365, 6557, 7663, 8051, 19671, 22989, 24153, 32785, 38315, 40255, 59013, 68967, 72459, 98355, 114945, 120765, 295065, 344835, 362295, 636029, 1908087, 3180145, 5724261, 9540435, 28621305]

約数ペア:

[(1, 28621305), (3, 9540435), (5, 5724261), (9, 3180145), (15, 1908087), (45, 636029), (79, 362295), (83, 344835), (97, 295065), (237, 120765), (249, 114945), (291, 98355), (395, 72459), (415, 68967), (485, 59013), (711, 40255), (747, 38315), (873, 32785), (1185, 24153), (1245, 22989), (1455, 19671), (3555, 8051), (3735, 7663), (4365, 6557)]