118518320

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:450

約数の個数: 80

約数和(自身を含む): 285196032

約数和(自身を除く): 166677712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 131, 172, 215, 262, 263, 344, 430, 524, 526, 655, 688, 860, 1048, 1052, 1310, 1315, 1720, 2096, 2104, 2620, 2630, 3440, 4208, 5240, 5260, 5633, 10480, 10520, 11266, 11309, 21040, 22532, 22618, 28165, 34453, 45064, 45236, 56330, 56545, 68906, 90128, 90472, 112660, 113090, 137812, 172265, 180944, 225320, 226180, 275624, 344530, 450640, 452360, 551248, 689060, 904720, 1378120, 1481479, 2756240, 2962958, 5925916, 7407395, 11851832, 14814790, 23703664, 29629580, 59259160, 118518320]

約数ペア:

[(1, 118518320), (2, 59259160), (4, 29629580), (5, 23703664), (8, 14814790), (10, 11851832), (16, 7407395), (20, 5925916), (40, 2962958), (43, 2756240), (80, 1481479), (86, 1378120), (131, 904720), (172, 689060), (215, 551248), (262, 452360), (263, 450640), (344, 344530), (430, 275624), (524, 226180), (526, 225320), (655, 180944), (688, 172265), (860, 137812), (1048, 113090), (1052, 112660), (1310, 90472), (1315, 90128), (1720, 68906), (2096, 56545), (2104, 56330), (2620, 45236), (2630, 45064), (3440, 34453), (4208, 28165), (5240, 22618), (5260, 22532), (5633, 21040), (10480, 11309), (10520, 11266)]