66991360

素因数分解:

$2^8\times 5^1\times {\mathrm{199}}^1\times {\mathrm{263}}^1$

素因数の和:483

約数の個数: 72

約数和(自身を含む): 161884800

約数和(自身を除く): 94893440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 199, 256, 263, 320, 398, 526, 640, 796, 995, 1052, 1280, 1315, 1592, 1990, 2104, 2630, 3184, 3980, 4208, 5260, 6368, 7960, 8416, 10520, 12736, 15920, 16832, 21040, 25472, 31840, 33664, 42080, 50944, 52337, 63680, 67328, 84160, 104674, 127360, 168320, 209348, 254720, 261685, 336640, 418696, 523370, 837392, 1046740, 1674784, 2093480, 3349568, 4186960, 6699136, 8373920, 13398272, 16747840, 33495680, 66991360]

約数ペア:

[(1, 66991360), (2, 33495680), (4, 16747840), (5, 13398272), (8, 8373920), (10, 6699136), (16, 4186960), (20, 3349568), (32, 2093480), (40, 1674784), (64, 1046740), (80, 837392), (128, 523370), (160, 418696), (199, 336640), (256, 261685), (263, 254720), (320, 209348), (398, 168320), (526, 127360), (640, 104674), (796, 84160), (995, 67328), (1052, 63680), (1280, 52337), (1315, 50944), (1592, 42080), (1990, 33664), (2104, 31840), (2630, 25472), (3184, 21040), (3980, 16832), (4208, 15920), (5260, 12736), (6368, 10520), (7960, 8416)]