205495280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:175

約数の個数: 160

約数和(自身を含む): 527966208

約数和(自身を除く): 322470928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 41, 43, 47, 62, 80, 82, 86, 94, 124, 155, 164, 172, 188, 205, 215, 235, 248, 310, 328, 344, 376, 410, 430, 470, 496, 620, 656, 688, 752, 820, 860, 940, 1240, 1271, 1333, 1457, 1640, 1720, 1763, 1880, 1927, 2021, 2480, 2542, 2666, 2914, 3280, 3440, 3526, 3760, 3854, 4042, 5084, 5332, 5828, 6355, 6665, 7052, 7285, 7708, 8084, 8815, 9635, 10105, 10168, 10664, 11656, 12710, 13330, 14104, 14570, 15416, 16168, 17630, 19270, 20210, 20336, 21328, 23312, 25420, 26660, 28208, 29140, 30832, 32336, 35260, 38540, 40420, 50840, 53320, 54653, 58280, 59737, 62651, 70520, 77080, 80840, 82861, 101680, 106640, 109306, 116560, 119474, 125302, 141040, 154160, 161680, 165722, 218612, 238948, 250604, 273265, 298685, 313255, 331444, 414305, 437224, 477896, 501208, 546530, 597370, 626510, 662888, 828610, 874448, 955792, 1002416, 1093060, 1194740, 1253020, 1325776, 1657220, 2186120, 2389480, 2506040, 2568691, 3314440, 4372240, 4778960, 5012080, 5137382, 6628880, 10274764, 12843455, 20549528, 25686910, 41099056, 51373820, 102747640, 205495280]

約数ペア:

[(1, 205495280), (2, 102747640), (4, 51373820), (5, 41099056), (8, 25686910), (10, 20549528), (16, 12843455), (20, 10274764), (31, 6628880), (40, 5137382), (41, 5012080), (43, 4778960), (47, 4372240), (62, 3314440), (80, 2568691), (82, 2506040), (86, 2389480), (94, 2186120), (124, 1657220), (155, 1325776), (164, 1253020), (172, 1194740), (188, 1093060), (205, 1002416), (215, 955792), (235, 874448), (248, 828610), (310, 662888), (328, 626510), (344, 597370), (376, 546530), (410, 501208), (430, 477896), (470, 437224), (496, 414305), (620, 331444), (656, 313255), (688, 298685), (752, 273265), (820, 250604), (860, 238948), (940, 218612), (1240, 165722), (1271, 161680), (1333, 154160), (1457, 141040), (1640, 125302), (1720, 119474), (1763, 116560), (1880, 109306), (1927, 106640), (2021, 101680), (2480, 82861), (2542, 80840), (2666, 77080), (2914, 70520), (3280, 62651), (3440, 59737), (3526, 58280), (3760, 54653), (3854, 53320), (4042, 50840), (5084, 40420), (5332, 38540), (5828, 35260), (6355, 32336), (6665, 30832), (7052, 29140), (7285, 28208), (7708, 26660), (8084, 25420), (8815, 23312), (9635, 21328), (10105, 20336), (10168, 20210), (10664, 19270), (11656, 17630), (12710, 16168), (13330, 15416), (14104, 14570)]