20693760

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{317}}^1$

素因数の和:358

約数の個数: 144

約数和(自身を含む): 70199136

約数和(自身を除く): 49505376

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 128, 136, 160, 170, 192, 204, 240, 255, 256, 272, 317, 320, 340, 384, 408, 480, 510, 544, 634, 640, 680, 768, 816, 951, 960, 1020, 1088, 1268, 1280, 1360, 1585, 1632, 1902, 1920, 2040, 2176, 2536, 2720, 3170, 3264, 3804, 3840, 4080, 4352, 4755, 5072, 5389, 5440, 6340, 6528, 7608, 8160, 9510, 10144, 10778, 10880, 12680, 13056, 15216, 16167, 16320, 19020, 20288, 21556, 21760, 25360, 26945, 30432, 32334, 32640, 38040, 40576, 43112, 50720, 53890, 60864, 64668, 65280, 76080, 80835, 81152, 86224, 101440, 107780, 121728, 129336, 152160, 161670, 172448, 202880, 215560, 243456, 258672, 304320, 323340, 344896, 405760, 431120, 517344, 608640, 646680, 689792, 862240, 1034688, 1217280, 1293360, 1379584, 1724480, 2069376, 2586720, 3448960, 4138752, 5173440, 6897920, 10346880, 20693760]

約数ペア:

[(1, 20693760), (2, 10346880), (3, 6897920), (4, 5173440), (5, 4138752), (6, 3448960), (8, 2586720), (10, 2069376), (12, 1724480), (15, 1379584), (16, 1293360), (17, 1217280), (20, 1034688), (24, 862240), (30, 689792), (32, 646680), (34, 608640), (40, 517344), (48, 431120), (51, 405760), (60, 344896), (64, 323340), (68, 304320), (80, 258672), (85, 243456), (96, 215560), (102, 202880), (120, 172448), (128, 161670), (136, 152160), (160, 129336), (170, 121728), (192, 107780), (204, 101440), (240, 86224), (255, 81152), (256, 80835), (272, 76080), (317, 65280), (320, 64668), (340, 60864), (384, 53890), (408, 50720), (480, 43112), (510, 40576), (544, 38040), (634, 32640), (640, 32334), (680, 30432), (768, 26945), (816, 25360), (951, 21760), (960, 21556), (1020, 20288), (1088, 19020), (1268, 16320), (1280, 16167), (1360, 15216), (1585, 13056), (1632, 12680), (1902, 10880), (1920, 10778), (2040, 10144), (2176, 9510), (2536, 8160), (2720, 7608), (3170, 6528), (3264, 6340), (3804, 5440), (3840, 5389), (4080, 5072), (4352, 4755)]