18967088

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1$

素因数の和:274

約数の個数: 80

約数和(自身を含む): 45235200

約数和(自身を除く): 26268112

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 37, 46, 56, 74, 92, 112, 148, 161, 184, 199, 259, 296, 322, 368, 398, 518, 592, 644, 796, 851, 1036, 1288, 1393, 1592, 1702, 2072, 2576, 2786, 3184, 3404, 4144, 4577, 5572, 5957, 6808, 7363, 9154, 11144, 11914, 13616, 14726, 18308, 22288, 23828, 29452, 32039, 36616, 47656, 51541, 58904, 64078, 73232, 95312, 103082, 117808, 128156, 169349, 206164, 256312, 338698, 412328, 512624, 677396, 824656, 1185443, 1354792, 2370886, 2709584, 4741772, 9483544, 18967088]

約数ペア:

[(1, 18967088), (2, 9483544), (4, 4741772), (7, 2709584), (8, 2370886), (14, 1354792), (16, 1185443), (23, 824656), (28, 677396), (37, 512624), (46, 412328), (56, 338698), (74, 256312), (92, 206164), (112, 169349), (148, 128156), (161, 117808), (184, 103082), (199, 95312), (259, 73232), (296, 64078), (322, 58904), (368, 51541), (398, 47656), (518, 36616), (592, 32039), (644, 29452), (796, 23828), (851, 22288), (1036, 18308), (1288, 14726), (1393, 13616), (1592, 11914), (1702, 11144), (2072, 9154), (2576, 7363), (2786, 6808), (3184, 5957), (3404, 5572), (4144, 4577)]