71441920

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:136

約数の個数: 160

約数和(自身を含む): 194451840

約数和(自身を除く): 123009920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 43, 44, 55, 59, 64, 80, 86, 88, 110, 118, 128, 160, 172, 176, 215, 220, 236, 256, 295, 320, 344, 352, 430, 440, 472, 473, 512, 590, 640, 649, 688, 704, 860, 880, 944, 946, 1180, 1280, 1298, 1376, 1408, 1720, 1760, 1888, 1892, 2360, 2365, 2537, 2560, 2596, 2752, 2816, 3245, 3440, 3520, 3776, 3784, 4720, 4730, 5074, 5192, 5504, 5632, 6490, 6880, 7040, 7552, 7568, 9440, 9460, 10148, 10384, 11008, 12685, 12980, 13760, 14080, 15104, 15136, 18880, 18920, 20296, 20768, 22016, 25370, 25960, 27520, 27907, 28160, 30208, 30272, 37760, 37840, 40592, 41536, 50740, 51920, 55040, 55814, 60544, 75520, 75680, 81184, 83072, 101480, 103840, 110080, 111628, 121088, 139535, 151040, 151360, 162368, 166144, 202960, 207680, 223256, 242176, 279070, 302720, 324736, 332288, 405920, 415360, 446512, 558140, 605440, 649472, 811840, 830720, 893024, 1116280, 1210880, 1298944, 1623680, 1661440, 1786048, 2232560, 3247360, 3572096, 4465120, 6494720, 7144192, 8930240, 14288384, 17860480, 35720960, 71441920]

約数ペア:

[(1, 71441920), (2, 35720960), (4, 17860480), (5, 14288384), (8, 8930240), (10, 7144192), (11, 6494720), (16, 4465120), (20, 3572096), (22, 3247360), (32, 2232560), (40, 1786048), (43, 1661440), (44, 1623680), (55, 1298944), (59, 1210880), (64, 1116280), (80, 893024), (86, 830720), (88, 811840), (110, 649472), (118, 605440), (128, 558140), (160, 446512), (172, 415360), (176, 405920), (215, 332288), (220, 324736), (236, 302720), (256, 279070), (295, 242176), (320, 223256), (344, 207680), (352, 202960), (430, 166144), (440, 162368), (472, 151360), (473, 151040), (512, 139535), (590, 121088), (640, 111628), (649, 110080), (688, 103840), (704, 101480), (860, 83072), (880, 81184), (944, 75680), (946, 75520), (1180, 60544), (1280, 55814), (1298, 55040), (1376, 51920), (1408, 50740), (1720, 41536), (1760, 40592), (1888, 37840), (1892, 37760), (2360, 30272), (2365, 30208), (2537, 28160), (2560, 27907), (2596, 27520), (2752, 25960), (2816, 25370), (3245, 22016), (3440, 20768), (3520, 20296), (3776, 18920), (3784, 18880), (4720, 15136), (4730, 15104), (5074, 14080), (5192, 13760), (5504, 12980), (5632, 12685), (6490, 11008), (6880, 10384), (7040, 10148), (7552, 9460), (7568, 9440)]