1990210320

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{1193}}^1$

素因数の和:1550

約数の個数: 240

約数和(自身を含む): 7668116352

約数和(自身を除く): 5677906032

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 331, 336, 360, 420, 504, 560, 630, 662, 720, 840, 993, 1008, 1193, 1260, 1324, 1655, 1680, 1986, 2317, 2386, 2520, 2648, 2979, 3310, 3579, 3972, 4634, 4772, 4965, 5040, 5296, 5958, 5965, 6620, 6951, 7158, 7944, 8351, 9268, 9544, 9930, 10737, 11585, 11916, 11930, 13240, 13902, 14316, 14895, 15888, 16702, 17895, 18536, 19088, 19860, 20853, 21474, 23170, 23832, 23860, 25053, 26480, 27804, 28632, 29790, 33404, 34755, 35790, 37072, 39720, 41706, 41755, 42948, 46340, 47664, 47720, 50106, 53685, 55608, 57264, 59580, 66808, 69510, 71580, 75159, 79440, 83412, 83510, 85896, 92680, 95440, 100212, 104265, 107370, 111216, 119160, 125265, 133616, 139020, 143160, 150318, 166824, 167020, 171792, 185360, 200424, 208530, 214740, 238320, 250530, 278040, 286320, 300636, 333648, 334040, 375795, 394883, 400848, 417060, 429480, 501060, 556080, 601272, 668080, 751590, 789766, 834120, 858960, 1002120, 1184649, 1202544, 1503180, 1579532, 1668240, 1974415, 2004240, 2369298, 2764181, 3006360, 3159064, 3553947, 3948830, 4738596, 5528362, 5923245, 6012720, 6318128, 7107894, 7897660, 8292543, 9477192, 11056724, 11846490, 13820905, 14215788, 15795320, 16585086, 17769735, 18954384, 22113448, 23692980, 24877629, 27641810, 28431576, 31590640, 33170172, 35539470, 41462715, 44226896, 47385960, 49755258, 55283620, 56863152, 66340344, 71078940, 82925430, 94771920, 99510516, 110567240, 124388145, 132680688, 142157880, 165850860, 199021032, 221134480, 248776290, 284315760, 331701720, 398042064, 497552580, 663403440, 995105160, 1990210320]

約数ペア:

[(1, 1990210320), (2, 995105160), (3, 663403440), (4, 497552580), (5, 398042064), (6, 331701720), (7, 284315760), (8, 248776290), (9, 221134480), (10, 199021032), (12, 165850860), (14, 142157880), (15, 132680688), (16, 124388145), (18, 110567240), (20, 99510516), (21, 94771920), (24, 82925430), (28, 71078940), (30, 66340344), (35, 56863152), (36, 55283620), (40, 49755258), (42, 47385960), (45, 44226896), (48, 41462715), (56, 35539470), (60, 33170172), (63, 31590640), (70, 28431576), (72, 27641810), (80, 24877629), (84, 23692980), (90, 22113448), (105, 18954384), (112, 17769735), (120, 16585086), (126, 15795320), (140, 14215788), (144, 13820905), (168, 11846490), (180, 11056724), (210, 9477192), (240, 8292543), (252, 7897660), (280, 7107894), (315, 6318128), (331, 6012720), (336, 5923245), (360, 5528362), (420, 4738596), (504, 3948830), (560, 3553947), (630, 3159064), (662, 3006360), (720, 2764181), (840, 2369298), (993, 2004240), (1008, 1974415), (1193, 1668240), (1260, 1579532), (1324, 1503180), (1655, 1202544), (1680, 1184649), (1986, 1002120), (2317, 858960), (2386, 834120), (2520, 789766), (2648, 751590), (2979, 668080), (3310, 601272), (3579, 556080), (3972, 501060), (4634, 429480), (4772, 417060), (4965, 400848), (5040, 394883), (5296, 375795), (5958, 334040), (5965, 333648), (6620, 300636), (6951, 286320), (7158, 278040), (7944, 250530), (8351, 238320), (9268, 214740), (9544, 208530), (9930, 200424), (10737, 185360), (11585, 171792), (11916, 167020), (11930, 166824), (13240, 150318), (13902, 143160), (14316, 139020), (14895, 133616), (15888, 125265), (16702, 119160), (17895, 111216), (18536, 107370), (19088, 104265), (19860, 100212), (20853, 95440), (21474, 92680), (23170, 85896), (23832, 83510), (23860, 83412), (25053, 79440), (26480, 75159), (27804, 71580), (28632, 69510), (29790, 66808), (33404, 59580), (34755, 57264), (35790, 55608), (37072, 53685), (39720, 50106), (41706, 47720), (41755, 47664), (42948, 46340)]