78268645

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{179}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 120113280

約数和(自身を除く): 41844635

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 155, 179, 217, 403, 455, 895, 961, 1085, 1253, 2015, 2327, 2821, 4805, 5549, 6265, 6727, 11635, 12493, 14105, 16289, 27745, 33635, 38843, 62465, 72137, 81445, 87451, 172019, 194215, 360685, 437255, 504959, 860095, 1204133, 2236247, 2524795, 6020665, 11181235, 15653729, 78268645]

約数ペア:

[(1, 78268645), (5, 15653729), (7, 11181235), (13, 6020665), (31, 2524795), (35, 2236247), (65, 1204133), (91, 860095), (155, 504959), (179, 437255), (217, 360685), (403, 194215), (455, 172019), (895, 87451), (961, 81445), (1085, 72137), (1253, 62465), (2015, 38843), (2327, 33635), (2821, 27745), (4805, 16289), (5549, 14105), (6265, 12493), (6727, 11635)]