20165740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{229}}^1$

素因数の和:299

約数の個数: 96

約数和(自身を含む): 52859520

約数和(自身を除く): 32693780

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 37, 68, 70, 74, 85, 119, 140, 148, 170, 185, 229, 238, 259, 340, 370, 458, 476, 518, 595, 629, 740, 916, 1036, 1145, 1190, 1258, 1295, 1603, 2290, 2380, 2516, 2590, 3145, 3206, 3893, 4403, 4580, 5180, 6290, 6412, 7786, 8015, 8473, 8806, 12580, 15572, 16030, 16946, 17612, 19465, 22015, 27251, 32060, 33892, 38930, 42365, 44030, 54502, 59311, 77860, 84730, 88060, 109004, 118622, 136255, 144041, 169460, 237244, 272510, 288082, 296555, 545020, 576164, 593110, 720205, 1008287, 1186220, 1440410, 2016574, 2880820, 4033148, 5041435, 10082870, 20165740]

約数ペア:

[(1, 20165740), (2, 10082870), (4, 5041435), (5, 4033148), (7, 2880820), (10, 2016574), (14, 1440410), (17, 1186220), (20, 1008287), (28, 720205), (34, 593110), (35, 576164), (37, 545020), (68, 296555), (70, 288082), (74, 272510), (85, 237244), (119, 169460), (140, 144041), (148, 136255), (170, 118622), (185, 109004), (229, 88060), (238, 84730), (259, 77860), (340, 59311), (370, 54502), (458, 44030), (476, 42365), (518, 38930), (595, 33892), (629, 32060), (740, 27251), (916, 22015), (1036, 19465), (1145, 17612), (1190, 16946), (1258, 16030), (1295, 15572), (1603, 12580), (2290, 8806), (2380, 8473), (2516, 8015), (2590, 7786), (3145, 6412), (3206, 6290), (3893, 5180), (4403, 4580)]