1998420228

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{263}}^1$

素因数の和:348

約数の個数: 288

約数和(自身を含む): 6540441600

約数和(自身を除く): 4542021372

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 23, 27, 28, 36, 38, 42, 46, 54, 57, 63, 69, 76, 84, 92, 108, 114, 126, 133, 138, 161, 171, 189, 207, 228, 252, 263, 266, 276, 322, 342, 378, 399, 414, 437, 483, 513, 526, 529, 532, 621, 644, 684, 756, 789, 798, 828, 874, 966, 1026, 1052, 1058, 1197, 1242, 1311, 1449, 1578, 1587, 1596, 1748, 1841, 1932, 2052, 2116, 2367, 2394, 2484, 2622, 2898, 3059, 3156, 3174, 3591, 3682, 3703, 3933, 4347, 4734, 4761, 4788, 4997, 5244, 5523, 5796, 6049, 6118, 6348, 7101, 7182, 7364, 7406, 7866, 8694, 9177, 9468, 9522, 9994, 10051, 11046, 11109, 11799, 12098, 12236, 14202, 14283, 14364, 14812, 14991, 15732, 16569, 17388, 18147, 18354, 19044, 19988, 20102, 22092, 22218, 23598, 24196, 27531, 28404, 28566, 29982, 30153, 33138, 33327, 34979, 36294, 36708, 40204, 42343, 44436, 44973, 47196, 49707, 54441, 55062, 57132, 59964, 60306, 66276, 66654, 69958, 70357, 72588, 82593, 84686, 89946, 90459, 99414, 99981, 104937, 108882, 110124, 114931, 120612, 127029, 133308, 134919, 139127, 139916, 140714, 163323, 165186, 169372, 179892, 180918, 198828, 199962, 209874, 211071, 217764, 229862, 254058, 269838, 271377, 278254, 281428, 314811, 326646, 330372, 344793, 361836, 381087, 399924, 417381, 419748, 422142, 459724, 508116, 539676, 542754, 556508, 629622, 633213, 653292, 689586, 762174, 804517, 834762, 844284, 944433, 973889, 1034379, 1085508, 1143261, 1252143, 1259244, 1266426, 1379172, 1524348, 1609034, 1669524, 1888866, 1899639, 1947778, 2068758, 2286522, 2413551, 2504286, 2532852, 2643413, 2921667, 3103137, 3218068, 3756429, 3777732, 3799278, 3895556, 4137516, 4573044, 4827102, 5008572, 5286826, 5843334, 6206274, 7240653, 7512858, 7598556, 7930239, 8765001, 9654204, 10573652, 11686668, 12412548, 14481306, 15025716, 15860478, 17530002, 18503891, 21721959, 23790717, 26295003, 28962612, 31720956, 35060004, 37007782, 43443918, 47581434, 52590006, 55511673, 71372151, 74015564, 86887836, 95162868, 105180012, 111023346, 142744302, 166535019, 222046692, 285488604, 333070038, 499605057, 666140076, 999210114, 1998420228]

約数ペア:

[(1, 1998420228), (2, 999210114), (3, 666140076), (4, 499605057), (6, 333070038), (7, 285488604), (9, 222046692), (12, 166535019), (14, 142744302), (18, 111023346), (19, 105180012), (21, 95162868), (23, 86887836), (27, 74015564), (28, 71372151), (36, 55511673), (38, 52590006), (42, 47581434), (46, 43443918), (54, 37007782), (57, 35060004), (63, 31720956), (69, 28962612), (76, 26295003), (84, 23790717), (92, 21721959), (108, 18503891), (114, 17530002), (126, 15860478), (133, 15025716), (138, 14481306), (161, 12412548), (171, 11686668), (189, 10573652), (207, 9654204), (228, 8765001), (252, 7930239), (263, 7598556), (266, 7512858), (276, 7240653), (322, 6206274), (342, 5843334), (378, 5286826), (399, 5008572), (414, 4827102), (437, 4573044), (483, 4137516), (513, 3895556), (526, 3799278), (529, 3777732), (532, 3756429), (621, 3218068), (644, 3103137), (684, 2921667), (756, 2643413), (789, 2532852), (798, 2504286), (828, 2413551), (874, 2286522), (966, 2068758), (1026, 1947778), (1052, 1899639), (1058, 1888866), (1197, 1669524), (1242, 1609034), (1311, 1524348), (1449, 1379172), (1578, 1266426), (1587, 1259244), (1596, 1252143), (1748, 1143261), (1841, 1085508), (1932, 1034379), (2052, 973889), (2116, 944433), (2367, 844284), (2394, 834762), (2484, 804517), (2622, 762174), (2898, 689586), (3059, 653292), (3156, 633213), (3174, 629622), (3591, 556508), (3682, 542754), (3703, 539676), (3933, 508116), (4347, 459724), (4734, 422142), (4761, 419748), (4788, 417381), (4997, 399924), (5244, 381087), (5523, 361836), (5796, 344793), (6049, 330372), (6118, 326646), (6348, 314811), (7101, 281428), (7182, 278254), (7364, 271377), (7406, 269838), (7866, 254058), (8694, 229862), (9177, 217764), (9468, 211071), (9522, 209874), (9994, 199962), (10051, 198828), (11046, 180918), (11109, 179892), (11799, 169372), (12098, 165186), (12236, 163323), (14202, 140714), (14283, 139916), (14364, 139127), (14812, 134919), (14991, 133308), (15732, 127029), (16569, 120612), (17388, 114931), (18147, 110124), (18354, 108882), (19044, 104937), (19988, 99981), (20102, 99414), (22092, 90459), (22218, 89946), (23598, 84686), (24196, 82593), (27531, 72588), (28404, 70357), (28566, 69958), (29982, 66654), (30153, 66276), (33138, 60306), (33327, 59964), (34979, 57132), (36294, 55062), (36708, 54441), (40204, 49707), (42343, 47196), (44436, 44973)]