289805715

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{641}}^1$

素因数の和:869

約数の個数: 64

約数和(自身を含む): 549141120

約数和(自身を除く): 259335405

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 197, 255, 459, 591, 641, 765, 985, 1773, 1923, 2295, 2955, 3205, 3349, 5319, 5769, 8865, 9615, 10047, 10897, 16745, 17307, 26595, 28845, 30141, 32691, 50235, 54485, 86535, 90423, 98073, 126277, 150705, 163455, 294219, 378831, 452115, 490365, 631385, 1136493, 1471095, 1894155, 2146709, 3409479, 5682465, 6440127, 10733545, 17047395, 19320381, 32200635, 57961143, 96601905, 289805715]

約数ペア:

[(1, 289805715), (3, 96601905), (5, 57961143), (9, 32200635), (15, 19320381), (17, 17047395), (27, 10733545), (45, 6440127), (51, 5682465), (85, 3409479), (135, 2146709), (153, 1894155), (197, 1471095), (255, 1136493), (459, 631385), (591, 490365), (641, 452115), (765, 378831), (985, 294219), (1773, 163455), (1923, 150705), (2295, 126277), (2955, 98073), (3205, 90423), (3349, 86535), (5319, 54485), (5769, 50235), (8865, 32691), (9615, 30141), (10047, 28845), (10897, 26595), (16745, 17307)]