208935680

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:242

約数の個数: 144

約数和(自身を含む): 536868864

約数和(自身を除く): 327933184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 47, 64, 80, 92, 94, 115, 128, 151, 160, 184, 188, 230, 235, 256, 302, 320, 368, 376, 460, 470, 604, 640, 736, 752, 755, 920, 940, 1081, 1208, 1280, 1472, 1504, 1510, 1840, 1880, 2162, 2416, 2944, 3008, 3020, 3473, 3680, 3760, 4324, 4832, 5405, 5888, 6016, 6040, 6946, 7097, 7360, 7520, 8648, 9664, 10810, 12032, 12080, 13892, 14194, 14720, 15040, 17296, 17365, 19328, 21620, 24160, 27784, 28388, 29440, 30080, 34592, 34730, 35485, 38656, 43240, 48320, 55568, 56776, 60160, 69184, 69460, 70970, 86480, 96640, 111136, 113552, 138368, 138920, 141940, 163231, 172960, 193280, 222272, 227104, 276736, 277840, 283880, 326462, 345920, 444544, 454208, 555680, 567760, 652924, 691840, 816155, 889088, 908416, 1111360, 1135520, 1305848, 1383680, 1632310, 1816832, 2222720, 2271040, 2611696, 3264620, 4445440, 4542080, 5223392, 6529240, 9084160, 10446784, 13058480, 20893568, 26116960, 41787136, 52233920, 104467840, 208935680]

約数ペア:

[(1, 208935680), (2, 104467840), (4, 52233920), (5, 41787136), (8, 26116960), (10, 20893568), (16, 13058480), (20, 10446784), (23, 9084160), (32, 6529240), (40, 5223392), (46, 4542080), (47, 4445440), (64, 3264620), (80, 2611696), (92, 2271040), (94, 2222720), (115, 1816832), (128, 1632310), (151, 1383680), (160, 1305848), (184, 1135520), (188, 1111360), (230, 908416), (235, 889088), (256, 816155), (302, 691840), (320, 652924), (368, 567760), (376, 555680), (460, 454208), (470, 444544), (604, 345920), (640, 326462), (736, 283880), (752, 277840), (755, 276736), (920, 227104), (940, 222272), (1081, 193280), (1208, 172960), (1280, 163231), (1472, 141940), (1504, 138920), (1510, 138368), (1840, 113552), (1880, 111136), (2162, 96640), (2416, 86480), (2944, 70970), (3008, 69460), (3020, 69184), (3473, 60160), (3680, 56776), (3760, 55568), (4324, 48320), (4832, 43240), (5405, 38656), (5888, 35485), (6016, 34730), (6040, 34592), (6946, 30080), (7097, 29440), (7360, 28388), (7520, 27784), (8648, 24160), (9664, 21620), (10810, 19328), (12032, 17365), (12080, 17296), (13892, 15040), (14194, 14720)]