128740065

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1$

素因数の和:326

約数の個数: 64

約数和(自身を含む): 228096000

約数和(自身を除く): 99355935

約数列:

[1, 3, 5, 15, 17, 43, 51, 59, 85, 129, 177, 199, 215, 255, 295, 597, 645, 731, 885, 995, 1003, 2193, 2537, 2985, 3009, 3383, 3655, 5015, 7611, 8557, 10149, 10965, 11741, 12685, 15045, 16915, 25671, 35223, 38055, 42785, 43129, 50745, 58705, 128355, 129387, 145469, 176115, 199597, 215645, 436407, 504863, 598791, 646935, 727345, 997985, 1514589, 2182035, 2524315, 2993955, 7572945, 8582671, 25748013, 42913355, 128740065]

約数ペア:

[(1, 128740065), (3, 42913355), (5, 25748013), (15, 8582671), (17, 7572945), (43, 2993955), (51, 2524315), (59, 2182035), (85, 1514589), (129, 997985), (177, 727345), (199, 646935), (215, 598791), (255, 504863), (295, 436407), (597, 215645), (645, 199597), (731, 176115), (885, 145469), (995, 129387), (1003, 128355), (2193, 58705), (2537, 50745), (2985, 43129), (3009, 42785), (3383, 38055), (3655, 35223), (5015, 25671), (7611, 16915), (8557, 15045), (10149, 12685), (10965, 11741)]