80650720

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:380

約数の個数: 96

約数和(自身を含む): 204120000

約数和(自身を除く): 123469280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 149, 160, 170, 199, 272, 298, 340, 398, 544, 596, 680, 745, 796, 995, 1192, 1360, 1490, 1592, 1990, 2384, 2533, 2720, 2980, 3184, 3383, 3980, 4768, 5066, 5960, 6368, 6766, 7960, 10132, 11920, 12665, 13532, 15920, 16915, 20264, 23840, 25330, 27064, 29651, 31840, 33830, 40528, 50660, 54128, 59302, 67660, 81056, 101320, 108256, 118604, 135320, 148255, 202640, 237208, 270640, 296510, 405280, 474416, 504067, 541280, 593020, 948832, 1008134, 1186040, 2016268, 2372080, 2520335, 4032536, 4744160, 5040670, 8065072, 10081340, 16130144, 20162680, 40325360, 80650720]

約数ペア:

[(1, 80650720), (2, 40325360), (4, 20162680), (5, 16130144), (8, 10081340), (10, 8065072), (16, 5040670), (17, 4744160), (20, 4032536), (32, 2520335), (34, 2372080), (40, 2016268), (68, 1186040), (80, 1008134), (85, 948832), (136, 593020), (149, 541280), (160, 504067), (170, 474416), (199, 405280), (272, 296510), (298, 270640), (340, 237208), (398, 202640), (544, 148255), (596, 135320), (680, 118604), (745, 108256), (796, 101320), (995, 81056), (1192, 67660), (1360, 59302), (1490, 54128), (1592, 50660), (1990, 40528), (2384, 33830), (2533, 31840), (2720, 29651), (2980, 27064), (3184, 25330), (3383, 23840), (3980, 20264), (4768, 16915), (5066, 15920), (5960, 13532), (6368, 12665), (6766, 11920), (7960, 10132)]