248245760

素因数分解:

$2^9\times 5^1\times 7^2\times {\mathrm{1979}}^1$

素因数の和:2016

約数の個数: 120

約数和(自身を含む): 692734680

約数和(自身を除く): 444488920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 512, 560, 640, 784, 896, 980, 1120, 1280, 1568, 1792, 1960, 1979, 2240, 2560, 3136, 3584, 3920, 3958, 4480, 6272, 7840, 7916, 8960, 9895, 12544, 13853, 15680, 15832, 17920, 19790, 25088, 27706, 31360, 31664, 39580, 55412, 62720, 63328, 69265, 79160, 96971, 110824, 125440, 126656, 138530, 158320, 193942, 221648, 253312, 277060, 316640, 387884, 443296, 484855, 506624, 554120, 633280, 775768, 886592, 969710, 1013248, 1108240, 1266560, 1551536, 1773184, 1939420, 2216480, 2533120, 3103072, 3546368, 3878840, 4432960, 5066240, 6206144, 7092736, 7757680, 8865920, 12412288, 15515360, 17731840, 24824576, 31030720, 35463680, 49649152, 62061440, 124122880, 248245760]

約数ペア:

[(1, 248245760), (2, 124122880), (4, 62061440), (5, 49649152), (7, 35463680), (8, 31030720), (10, 24824576), (14, 17731840), (16, 15515360), (20, 12412288), (28, 8865920), (32, 7757680), (35, 7092736), (40, 6206144), (49, 5066240), (56, 4432960), (64, 3878840), (70, 3546368), (80, 3103072), (98, 2533120), (112, 2216480), (128, 1939420), (140, 1773184), (160, 1551536), (196, 1266560), (224, 1108240), (245, 1013248), (256, 969710), (280, 886592), (320, 775768), (392, 633280), (448, 554120), (490, 506624), (512, 484855), (560, 443296), (640, 387884), (784, 316640), (896, 277060), (980, 253312), (1120, 221648), (1280, 193942), (1568, 158320), (1792, 138530), (1960, 126656), (1979, 125440), (2240, 110824), (2560, 96971), (3136, 79160), (3584, 69265), (3920, 63328), (3958, 62720), (4480, 55412), (6272, 39580), (7840, 31664), (7916, 31360), (8960, 27706), (9895, 25088), (12544, 19790), (13853, 17920), (15680, 15832)]