74981465

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 100383360

約数和(自身を除く): 25401895

約数列:

[1, 5, 13, 43, 65, 139, 193, 215, 559, 695, 965, 1807, 2509, 2795, 5977, 8299, 9035, 12545, 26827, 29885, 41495, 77701, 107887, 134135, 348751, 388505, 539435, 1153561, 1743755, 5767805, 14996293, 74981465]

約数ペア:

[(1, 74981465), (5, 14996293), (13, 5767805), (43, 1743755), (65, 1153561), (139, 539435), (193, 388505), (215, 348751), (559, 134135), (695, 107887), (965, 77701), (1807, 41495), (2509, 29885), (2795, 26827), (5977, 12545), (8299, 9035)]