64784720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{809}}^1$

素因数の和:853

約数の個数: 160

約数和(自身を含む): 202487040

約数和(自身を除く): 137702320

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 80, 88, 91, 104, 110, 112, 130, 140, 143, 154, 176, 182, 208, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 560, 572, 616, 715, 728, 770, 809, 880, 910, 1001, 1040, 1144, 1232, 1430, 1456, 1540, 1618, 1820, 2002, 2288, 2860, 3080, 3236, 3640, 4004, 4045, 5005, 5663, 5720, 6160, 6472, 7280, 8008, 8090, 8899, 10010, 10517, 11326, 11440, 12944, 16016, 16180, 17798, 20020, 21034, 22652, 28315, 32360, 35596, 40040, 42068, 44495, 45304, 52585, 56630, 62293, 64720, 71192, 73619, 80080, 84136, 88990, 90608, 105170, 113260, 115687, 124586, 142384, 147238, 168272, 177980, 210340, 226520, 231374, 249172, 294476, 311465, 355960, 368095, 420680, 453040, 462748, 498344, 578435, 588952, 622930, 711920, 736190, 809809, 841360, 925496, 996688, 1156870, 1177904, 1245860, 1472380, 1619618, 1850992, 2313740, 2491720, 2944760, 3239236, 4049045, 4627480, 4983440, 5889520, 6478472, 8098090, 9254960, 12956944, 16196180, 32392360, 64784720]

約数ペア:

[(1, 64784720), (2, 32392360), (4, 16196180), (5, 12956944), (7, 9254960), (8, 8098090), (10, 6478472), (11, 5889520), (13, 4983440), (14, 4627480), (16, 4049045), (20, 3239236), (22, 2944760), (26, 2491720), (28, 2313740), (35, 1850992), (40, 1619618), (44, 1472380), (52, 1245860), (55, 1177904), (56, 1156870), (65, 996688), (70, 925496), (77, 841360), (80, 809809), (88, 736190), (91, 711920), (104, 622930), (110, 588952), (112, 578435), (130, 498344), (140, 462748), (143, 453040), (154, 420680), (176, 368095), (182, 355960), (208, 311465), (220, 294476), (260, 249172), (280, 231374), (286, 226520), (308, 210340), (364, 177980), (385, 168272), (440, 147238), (455, 142384), (520, 124586), (560, 115687), (572, 113260), (616, 105170), (715, 90608), (728, 88990), (770, 84136), (809, 80080), (880, 73619), (910, 71192), (1001, 64720), (1040, 62293), (1144, 56630), (1232, 52585), (1430, 45304), (1456, 44495), (1540, 42068), (1618, 40040), (1820, 35596), (2002, 32360), (2288, 28315), (2860, 22652), (3080, 21034), (3236, 20020), (3640, 17798), (4004, 16180), (4045, 16016), (5005, 12944), (5663, 11440), (5720, 11326), (6160, 10517), (6472, 10010), (7280, 8899), (8008, 8090)]