78905645

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:214

約数の個数: 64

約数和(自身を含む): 123594240

約数和(自身を除く): 44688595

約数列:

[1, 5, 7, 13, 35, 37, 43, 65, 91, 109, 185, 215, 259, 301, 455, 481, 545, 559, 763, 1295, 1417, 1505, 1591, 2405, 2795, 3367, 3815, 3913, 4033, 4687, 7085, 7955, 9919, 11137, 16835, 19565, 20165, 20683, 23435, 28231, 32809, 49595, 52429, 55685, 60931, 103415, 141155, 144781, 164045, 173419, 262145, 304655, 367003, 426517, 723905, 867095, 1213933, 1835015, 2132585, 2254447, 6069665, 11272235, 15781129, 78905645]

約数ペア:

[(1, 78905645), (5, 15781129), (7, 11272235), (13, 6069665), (35, 2254447), (37, 2132585), (43, 1835015), (65, 1213933), (91, 867095), (109, 723905), (185, 426517), (215, 367003), (259, 304655), (301, 262145), (455, 173419), (481, 164045), (545, 144781), (559, 141155), (763, 103415), (1295, 60931), (1417, 55685), (1505, 52429), (1591, 49595), (2405, 32809), (2795, 28231), (3367, 23435), (3815, 20683), (3913, 20165), (4033, 19565), (4687, 16835), (7085, 11137), (7955, 9919)]