398351520

素因数分解:

$2^5\times 3^4\times 5^1\times 7^1\times {\mathrm{4391}}^1$

素因数の和:4425

約数の個数: 240

約数和(自身を含む): 1607050368

約数和(自身を除く): 1208698848

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 162, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 324, 336, 360, 378, 405, 420, 432, 480, 504, 540, 560, 567, 630, 648, 672, 720, 756, 810, 840, 864, 945, 1008, 1080, 1120, 1134, 1260, 1296, 1440, 1512, 1620, 1680, 1890, 2016, 2160, 2268, 2520, 2592, 2835, 3024, 3240, 3360, 3780, 4320, 4391, 4536, 5040, 5670, 6048, 6480, 7560, 8782, 9072, 10080, 11340, 12960, 13173, 15120, 17564, 18144, 21955, 22680, 26346, 30240, 30737, 35128, 39519, 43910, 45360, 52692, 61474, 65865, 70256, 79038, 87820, 90720, 92211, 105384, 118557, 122948, 131730, 140512, 153685, 158076, 175640, 184422, 197595, 210768, 237114, 245896, 263460, 276633, 307370, 316152, 351280, 355671, 368844, 395190, 421536, 461055, 474228, 491792, 526920, 553266, 592785, 614740, 632304, 702560, 711342, 737688, 790380, 829899, 922110, 948456, 983584, 1053840, 1106532, 1185570, 1229480, 1264608, 1383165, 1422684, 1475376, 1580760, 1659798, 1778355, 1844220, 1896912, 2107680, 2213064, 2371140, 2458960, 2489697, 2766330, 2845368, 2950752, 3161520, 3319596, 3556710, 3688440, 3793824, 4149495, 4426128, 4742280, 4917920, 4979394, 5532660, 5690736, 6323040, 6639192, 7113420, 7376880, 8298990, 8852256, 9484560, 9958788, 11065320, 11381472, 12448485, 13278384, 14226840, 14753760, 16597980, 18969120, 19917576, 22130640, 24896970, 26556768, 28453680, 33195960, 39835152, 44261280, 49793940, 56907360, 66391920, 79670304, 99587880, 132783840, 199175760, 398351520]

約数ペア:

[(1, 398351520), (2, 199175760), (3, 132783840), (4, 99587880), (5, 79670304), (6, 66391920), (7, 56907360), (8, 49793940), (9, 44261280), (10, 39835152), (12, 33195960), (14, 28453680), (15, 26556768), (16, 24896970), (18, 22130640), (20, 19917576), (21, 18969120), (24, 16597980), (27, 14753760), (28, 14226840), (30, 13278384), (32, 12448485), (35, 11381472), (36, 11065320), (40, 9958788), (42, 9484560), (45, 8852256), (48, 8298990), (54, 7376880), (56, 7113420), (60, 6639192), (63, 6323040), (70, 5690736), (72, 5532660), (80, 4979394), (81, 4917920), (84, 4742280), (90, 4426128), (96, 4149495), (105, 3793824), (108, 3688440), (112, 3556710), (120, 3319596), (126, 3161520), (135, 2950752), (140, 2845368), (144, 2766330), (160, 2489697), (162, 2458960), (168, 2371140), (180, 2213064), (189, 2107680), (210, 1896912), (216, 1844220), (224, 1778355), (240, 1659798), (252, 1580760), (270, 1475376), (280, 1422684), (288, 1383165), (315, 1264608), (324, 1229480), (336, 1185570), (360, 1106532), (378, 1053840), (405, 983584), (420, 948456), (432, 922110), (480, 829899), (504, 790380), (540, 737688), (560, 711342), (567, 702560), (630, 632304), (648, 614740), (672, 592785), (720, 553266), (756, 526920), (810, 491792), (840, 474228), (864, 461055), (945, 421536), (1008, 395190), (1080, 368844), (1120, 355671), (1134, 351280), (1260, 316152), (1296, 307370), (1440, 276633), (1512, 263460), (1620, 245896), (1680, 237114), (1890, 210768), (2016, 197595), (2160, 184422), (2268, 175640), (2520, 158076), (2592, 153685), (2835, 140512), (3024, 131730), (3240, 122948), (3360, 118557), (3780, 105384), (4320, 92211), (4391, 90720), (4536, 87820), (5040, 79038), (5670, 70256), (6048, 65865), (6480, 61474), (7560, 52692), (8782, 45360), (9072, 43910), (10080, 39519), (11340, 35128), (12960, 30737), (13173, 30240), (15120, 26346), (17564, 22680), (18144, 21955)]