12918275

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:311

約数の個数: 24

約数和(自身を含む): 16744464

約数和(自身を除く): 3826189

約数列:

[1, 5, 25, 43, 61, 197, 215, 305, 985, 1075, 1525, 2623, 4925, 8471, 12017, 13115, 42355, 60085, 65575, 211775, 300425, 516731, 2583655, 12918275]

約数ペア:

[(1, 12918275), (5, 2583655), (25, 516731), (43, 300425), (61, 211775), (197, 65575), (215, 60085), (305, 42355), (985, 13115), (1075, 12017), (1525, 8471), (2623, 4925)]