78531840

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1$

素因数の和:445

約数の個数: 216

約数和(自身を含む): 288412488

約数和(自身を除く): 209880648

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 32, 34, 36, 40, 45, 48, 51, 60, 64, 68, 72, 80, 85, 90, 96, 102, 120, 128, 136, 144, 153, 160, 170, 180, 192, 204, 240, 255, 256, 272, 288, 306, 320, 340, 360, 384, 401, 408, 480, 510, 544, 576, 612, 640, 680, 720, 765, 768, 802, 816, 960, 1020, 1088, 1152, 1203, 1224, 1280, 1360, 1440, 1530, 1604, 1632, 1920, 2005, 2040, 2176, 2304, 2406, 2448, 2720, 2880, 3060, 3208, 3264, 3609, 3840, 4010, 4080, 4352, 4812, 4896, 5440, 5760, 6015, 6120, 6416, 6528, 6817, 7218, 8020, 8160, 9624, 9792, 10880, 11520, 12030, 12240, 12832, 13056, 13634, 14436, 16040, 16320, 18045, 19248, 19584, 20451, 21760, 24060, 24480, 25664, 27268, 28872, 32080, 32640, 34085, 36090, 38496, 39168, 40902, 48120, 48960, 51328, 54536, 57744, 61353, 64160, 65280, 68170, 72180, 76992, 81804, 96240, 97920, 102255, 102656, 109072, 115488, 122706, 128320, 136340, 144360, 153984, 163608, 192480, 195840, 204510, 218144, 230976, 245412, 256640, 272680, 288720, 306765, 307968, 327216, 384960, 409020, 436288, 461952, 490824, 513280, 545360, 577440, 613530, 654432, 769920, 818040, 872576, 923904, 981648, 1090720, 1154880, 1227060, 1308864, 1539840, 1636080, 1745152, 1963296, 2181440, 2309760, 2454120, 2617728, 3272160, 3926592, 4362880, 4619520, 4908240, 5235456, 6544320, 7853184, 8725760, 9816480, 13088640, 15706368, 19632960, 26177280, 39265920, 78531840]

約数ペア:

[(1, 78531840), (2, 39265920), (3, 26177280), (4, 19632960), (5, 15706368), (6, 13088640), (8, 9816480), (9, 8725760), (10, 7853184), (12, 6544320), (15, 5235456), (16, 4908240), (17, 4619520), (18, 4362880), (20, 3926592), (24, 3272160), (30, 2617728), (32, 2454120), (34, 2309760), (36, 2181440), (40, 1963296), (45, 1745152), (48, 1636080), (51, 1539840), (60, 1308864), (64, 1227060), (68, 1154880), (72, 1090720), (80, 981648), (85, 923904), (90, 872576), (96, 818040), (102, 769920), (120, 654432), (128, 613530), (136, 577440), (144, 545360), (153, 513280), (160, 490824), (170, 461952), (180, 436288), (192, 409020), (204, 384960), (240, 327216), (255, 307968), (256, 306765), (272, 288720), (288, 272680), (306, 256640), (320, 245412), (340, 230976), (360, 218144), (384, 204510), (401, 195840), (408, 192480), (480, 163608), (510, 153984), (544, 144360), (576, 136340), (612, 128320), (640, 122706), (680, 115488), (720, 109072), (765, 102656), (768, 102255), (802, 97920), (816, 96240), (960, 81804), (1020, 76992), (1088, 72180), (1152, 68170), (1203, 65280), (1224, 64160), (1280, 61353), (1360, 57744), (1440, 54536), (1530, 51328), (1604, 48960), (1632, 48120), (1920, 40902), (2005, 39168), (2040, 38496), (2176, 36090), (2304, 34085), (2406, 32640), (2448, 32080), (2720, 28872), (2880, 27268), (3060, 25664), (3208, 24480), (3264, 24060), (3609, 21760), (3840, 20451), (4010, 19584), (4080, 19248), (4352, 18045), (4812, 16320), (4896, 16040), (5440, 14436), (5760, 13634), (6015, 13056), (6120, 12832), (6416, 12240), (6528, 12030), (6817, 11520), (7218, 10880), (8020, 9792), (8160, 9624)]