256303320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{479}}^1$

素因数の和:527

約数の個数: 256

約数和(自身を含む): 967680000

約数和(自身を除く): 711376680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 49, 52, 56, 60, 65, 70, 78, 84, 91, 98, 104, 105, 120, 130, 140, 147, 156, 168, 182, 195, 196, 210, 245, 260, 273, 280, 294, 312, 343, 364, 390, 392, 420, 455, 479, 490, 520, 546, 588, 637, 686, 728, 735, 780, 840, 910, 958, 980, 1029, 1092, 1176, 1274, 1365, 1372, 1437, 1470, 1560, 1715, 1820, 1911, 1916, 1960, 2058, 2184, 2395, 2548, 2730, 2744, 2874, 2940, 3185, 3353, 3430, 3640, 3822, 3832, 4116, 4459, 4790, 5096, 5145, 5460, 5748, 5880, 6227, 6370, 6706, 6860, 7185, 7644, 8232, 8918, 9555, 9580, 10059, 10290, 10920, 11496, 12454, 12740, 13377, 13412, 13720, 14370, 15288, 16765, 17836, 18681, 19110, 19160, 20118, 20580, 22295, 23471, 24908, 25480, 26754, 26824, 28740, 31135, 33530, 35672, 37362, 38220, 40236, 41160, 43589, 44590, 46942, 49816, 50295, 53508, 57480, 62270, 66885, 67060, 70413, 74724, 76440, 80472, 87178, 89180, 93405, 93884, 100590, 107016, 117355, 124540, 130767, 133770, 134120, 140826, 149448, 164297, 174356, 178360, 186810, 187768, 201180, 217945, 234710, 249080, 261534, 267540, 281652, 305123, 328594, 348712, 352065, 373620, 402360, 435890, 469420, 492891, 523068, 535080, 563304, 610246, 653835, 657188, 704130, 747240, 821485, 871780, 915369, 938840, 985782, 1046136, 1220492, 1307670, 1314376, 1408260, 1525615, 1642970, 1743560, 1830738, 1971564, 2135861, 2440984, 2464455, 2615340, 2816520, 3051230, 3285940, 3661476, 3943128, 4271722, 4576845, 4928910, 5230680, 6102460, 6407583, 6571880, 7322952, 8543444, 9153690, 9857820, 10679305, 12204920, 12815166, 17086888, 18307380, 19715640, 21358610, 25630332, 32037915, 36614760, 42717220, 51260664, 64075830, 85434440, 128151660, 256303320]

約数ペア:

[(1, 256303320), (2, 128151660), (3, 85434440), (4, 64075830), (5, 51260664), (6, 42717220), (7, 36614760), (8, 32037915), (10, 25630332), (12, 21358610), (13, 19715640), (14, 18307380), (15, 17086888), (20, 12815166), (21, 12204920), (24, 10679305), (26, 9857820), (28, 9153690), (30, 8543444), (35, 7322952), (39, 6571880), (40, 6407583), (42, 6102460), (49, 5230680), (52, 4928910), (56, 4576845), (60, 4271722), (65, 3943128), (70, 3661476), (78, 3285940), (84, 3051230), (91, 2816520), (98, 2615340), (104, 2464455), (105, 2440984), (120, 2135861), (130, 1971564), (140, 1830738), (147, 1743560), (156, 1642970), (168, 1525615), (182, 1408260), (195, 1314376), (196, 1307670), (210, 1220492), (245, 1046136), (260, 985782), (273, 938840), (280, 915369), (294, 871780), (312, 821485), (343, 747240), (364, 704130), (390, 657188), (392, 653835), (420, 610246), (455, 563304), (479, 535080), (490, 523068), (520, 492891), (546, 469420), (588, 435890), (637, 402360), (686, 373620), (728, 352065), (735, 348712), (780, 328594), (840, 305123), (910, 281652), (958, 267540), (980, 261534), (1029, 249080), (1092, 234710), (1176, 217945), (1274, 201180), (1365, 187768), (1372, 186810), (1437, 178360), (1470, 174356), (1560, 164297), (1715, 149448), (1820, 140826), (1911, 134120), (1916, 133770), (1960, 130767), (2058, 124540), (2184, 117355), (2395, 107016), (2548, 100590), (2730, 93884), (2744, 93405), (2874, 89180), (2940, 87178), (3185, 80472), (3353, 76440), (3430, 74724), (3640, 70413), (3822, 67060), (3832, 66885), (4116, 62270), (4459, 57480), (4790, 53508), (5096, 50295), (5145, 49816), (5460, 46942), (5748, 44590), (5880, 43589), (6227, 41160), (6370, 40236), (6706, 38220), (6860, 37362), (7185, 35672), (7644, 33530), (8232, 31135), (8918, 28740), (9555, 26824), (9580, 26754), (10059, 25480), (10290, 24908), (10920, 23471), (11496, 22295), (12454, 20580), (12740, 20118), (13377, 19160), (13412, 19110), (13720, 18681), (14370, 17836), (15288, 16765)]