281019960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:223

約数の個数: 288

約数和(自身を含む): 1027728000

約数和(自身を除く): 746708040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 31, 36, 39, 40, 45, 52, 60, 62, 65, 72, 78, 90, 93, 104, 117, 120, 124, 130, 149, 155, 156, 169, 180, 186, 195, 234, 248, 260, 279, 298, 310, 312, 338, 360, 372, 390, 403, 447, 465, 468, 507, 520, 558, 585, 596, 620, 676, 744, 745, 780, 806, 845, 894, 930, 936, 1014, 1116, 1170, 1192, 1209, 1240, 1341, 1352, 1395, 1490, 1521, 1560, 1612, 1690, 1788, 1860, 1937, 2015, 2028, 2232, 2235, 2340, 2418, 2535, 2682, 2790, 2980, 3042, 3224, 3380, 3576, 3627, 3720, 3874, 4030, 4056, 4470, 4619, 4680, 4836, 5070, 5239, 5364, 5580, 5811, 5960, 6045, 6084, 6705, 6760, 7254, 7605, 7748, 8060, 8940, 9238, 9672, 9685, 10140, 10478, 10728, 11160, 11622, 12090, 12168, 13410, 13857, 14508, 15210, 15496, 15717, 16120, 17433, 17880, 18135, 18476, 19370, 20280, 20956, 23095, 23244, 24180, 25181, 26195, 26820, 27714, 29016, 29055, 30420, 31434, 34866, 36270, 36952, 38740, 41571, 41912, 46190, 46488, 47151, 48360, 50362, 52390, 53640, 55428, 58110, 60047, 60840, 62868, 69285, 69732, 72540, 75543, 77480, 78585, 83142, 87165, 92380, 94302, 100724, 104780, 110856, 116220, 120094, 125736, 125905, 138570, 139464, 145080, 151086, 157170, 166284, 174330, 180141, 184760, 188604, 201448, 207855, 209560, 226629, 232440, 235755, 240188, 251810, 277140, 300235, 302172, 314340, 332568, 348660, 360282, 377208, 377715, 415710, 453258, 471510, 480376, 503620, 540423, 554280, 600470, 604344, 628680, 697320, 720564, 755430, 780611, 831420, 900705, 906516, 943020, 1007240, 1080846, 1133145, 1200940, 1441128, 1510860, 1561222, 1662840, 1801410, 1813032, 1886040, 2161692, 2266290, 2341833, 2401880, 2702115, 3021720, 3122444, 3602820, 3903055, 4323384, 4532580, 4683666, 5404230, 6244888, 7025499, 7205640, 7806110, 9065160, 9367332, 10808460, 11709165, 14050998, 15612220, 18734664, 21616920, 23418330, 28101996, 31224440, 35127495, 46836660, 56203992, 70254990, 93673320, 140509980, 281019960]

約数ペア:

[(1, 281019960), (2, 140509980), (3, 93673320), (4, 70254990), (5, 56203992), (6, 46836660), (8, 35127495), (9, 31224440), (10, 28101996), (12, 23418330), (13, 21616920), (15, 18734664), (18, 15612220), (20, 14050998), (24, 11709165), (26, 10808460), (30, 9367332), (31, 9065160), (36, 7806110), (39, 7205640), (40, 7025499), (45, 6244888), (52, 5404230), (60, 4683666), (62, 4532580), (65, 4323384), (72, 3903055), (78, 3602820), (90, 3122444), (93, 3021720), (104, 2702115), (117, 2401880), (120, 2341833), (124, 2266290), (130, 2161692), (149, 1886040), (155, 1813032), (156, 1801410), (169, 1662840), (180, 1561222), (186, 1510860), (195, 1441128), (234, 1200940), (248, 1133145), (260, 1080846), (279, 1007240), (298, 943020), (310, 906516), (312, 900705), (338, 831420), (360, 780611), (372, 755430), (390, 720564), (403, 697320), (447, 628680), (465, 604344), (468, 600470), (507, 554280), (520, 540423), (558, 503620), (585, 480376), (596, 471510), (620, 453258), (676, 415710), (744, 377715), (745, 377208), (780, 360282), (806, 348660), (845, 332568), (894, 314340), (930, 302172), (936, 300235), (1014, 277140), (1116, 251810), (1170, 240188), (1192, 235755), (1209, 232440), (1240, 226629), (1341, 209560), (1352, 207855), (1395, 201448), (1490, 188604), (1521, 184760), (1560, 180141), (1612, 174330), (1690, 166284), (1788, 157170), (1860, 151086), (1937, 145080), (2015, 139464), (2028, 138570), (2232, 125905), (2235, 125736), (2340, 120094), (2418, 116220), (2535, 110856), (2682, 104780), (2790, 100724), (2980, 94302), (3042, 92380), (3224, 87165), (3380, 83142), (3576, 78585), (3627, 77480), (3720, 75543), (3874, 72540), (4030, 69732), (4056, 69285), (4470, 62868), (4619, 60840), (4680, 60047), (4836, 58110), (5070, 55428), (5239, 53640), (5364, 52390), (5580, 50362), (5811, 48360), (5960, 47151), (6045, 46488), (6084, 46190), (6705, 41912), (6760, 41571), (7254, 38740), (7605, 36952), (7748, 36270), (8060, 34866), (8940, 31434), (9238, 30420), (9672, 29055), (9685, 29016), (10140, 27714), (10478, 26820), (10728, 26195), (11160, 25181), (11622, 24180), (12090, 23244), (12168, 23095), (13410, 20956), (13857, 20280), (14508, 19370), (15210, 18476), (15496, 18135), (15717, 17880), (16120, 17433)]