66736640

素因数分解:

$2^9\times 5^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:353

約数の個数: 80

約数和(自身を含む): 162043200

約数和(自身を除く): 95306560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 131, 160, 199, 256, 262, 320, 398, 512, 524, 640, 655, 796, 995, 1048, 1280, 1310, 1592, 1990, 2096, 2560, 2620, 3184, 3980, 4192, 5240, 6368, 7960, 8384, 10480, 12736, 15920, 16768, 20960, 25472, 26069, 31840, 33536, 41920, 50944, 52138, 63680, 67072, 83840, 101888, 104276, 127360, 130345, 167680, 208552, 254720, 260690, 335360, 417104, 509440, 521380, 834208, 1042760, 1668416, 2085520, 3336832, 4171040, 6673664, 8342080, 13347328, 16684160, 33368320, 66736640]

約数ペア:

[(1, 66736640), (2, 33368320), (4, 16684160), (5, 13347328), (8, 8342080), (10, 6673664), (16, 4171040), (20, 3336832), (32, 2085520), (40, 1668416), (64, 1042760), (80, 834208), (128, 521380), (131, 509440), (160, 417104), (199, 335360), (256, 260690), (262, 254720), (320, 208552), (398, 167680), (512, 130345), (524, 127360), (640, 104276), (655, 101888), (796, 83840), (995, 67072), (1048, 63680), (1280, 52138), (1310, 50944), (1592, 41920), (1990, 33536), (2096, 31840), (2560, 26069), (2620, 25472), (3184, 20960), (3980, 16768), (4192, 15920), (5240, 12736), (6368, 10480), (7960, 8384)]