205198920

素因数分解:

$2^3\times 3^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1$

素因数の和:287

約数の個数: 224

約数和(自身を含む): 717707520

約数和(自身を除く): 512508600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 31, 36, 40, 45, 54, 60, 62, 72, 81, 90, 93, 108, 120, 124, 135, 155, 162, 180, 186, 216, 227, 243, 248, 270, 279, 310, 324, 360, 372, 405, 454, 465, 486, 540, 558, 620, 648, 681, 729, 744, 810, 837, 908, 930, 972, 1080, 1116, 1135, 1215, 1240, 1362, 1395, 1458, 1620, 1674, 1816, 1860, 1944, 2043, 2232, 2270, 2430, 2511, 2724, 2790, 2916, 3240, 3348, 3405, 3645, 3720, 4086, 4185, 4540, 4860, 5022, 5448, 5580, 5832, 6129, 6696, 6810, 7037, 7290, 7533, 8172, 8370, 9080, 9720, 10044, 10215, 11160, 12258, 12555, 13620, 14074, 14580, 15066, 16344, 16740, 18387, 20088, 20430, 21111, 22599, 24516, 25110, 27240, 28148, 29160, 30132, 30645, 33480, 35185, 36774, 37665, 40860, 42222, 45198, 49032, 50220, 55161, 56296, 60264, 61290, 63333, 70370, 73548, 75330, 81720, 84444, 90396, 91935, 100440, 105555, 110322, 112995, 122580, 126666, 140740, 147096, 150660, 165483, 168888, 180792, 183870, 189999, 211110, 220644, 225990, 245160, 253332, 275805, 281480, 301320, 316665, 330966, 367740, 379998, 422220, 441288, 451980, 506664, 551610, 569997, 633330, 661932, 735480, 759996, 827415, 844440, 903960, 949995, 1103220, 1139994, 1266660, 1323864, 1519992, 1654830, 1709991, 1899990, 2206440, 2279988, 2533320, 2849985, 3309660, 3419982, 3799980, 4559976, 5129973, 5699970, 6619320, 6839964, 7599960, 8549955, 10259946, 11399940, 13679928, 17099910, 20519892, 22799880, 25649865, 34199820, 41039784, 51299730, 68399640, 102599460, 205198920]

約数ペア:

[(1, 205198920), (2, 102599460), (3, 68399640), (4, 51299730), (5, 41039784), (6, 34199820), (8, 25649865), (9, 22799880), (10, 20519892), (12, 17099910), (15, 13679928), (18, 11399940), (20, 10259946), (24, 8549955), (27, 7599960), (30, 6839964), (31, 6619320), (36, 5699970), (40, 5129973), (45, 4559976), (54, 3799980), (60, 3419982), (62, 3309660), (72, 2849985), (81, 2533320), (90, 2279988), (93, 2206440), (108, 1899990), (120, 1709991), (124, 1654830), (135, 1519992), (155, 1323864), (162, 1266660), (180, 1139994), (186, 1103220), (216, 949995), (227, 903960), (243, 844440), (248, 827415), (270, 759996), (279, 735480), (310, 661932), (324, 633330), (360, 569997), (372, 551610), (405, 506664), (454, 451980), (465, 441288), (486, 422220), (540, 379998), (558, 367740), (620, 330966), (648, 316665), (681, 301320), (729, 281480), (744, 275805), (810, 253332), (837, 245160), (908, 225990), (930, 220644), (972, 211110), (1080, 189999), (1116, 183870), (1135, 180792), (1215, 168888), (1240, 165483), (1362, 150660), (1395, 147096), (1458, 140740), (1620, 126666), (1674, 122580), (1816, 112995), (1860, 110322), (1944, 105555), (2043, 100440), (2232, 91935), (2270, 90396), (2430, 84444), (2511, 81720), (2724, 75330), (2790, 73548), (2916, 70370), (3240, 63333), (3348, 61290), (3405, 60264), (3645, 56296), (3720, 55161), (4086, 50220), (4185, 49032), (4540, 45198), (4860, 42222), (5022, 40860), (5448, 37665), (5580, 36774), (5832, 35185), (6129, 33480), (6696, 30645), (6810, 30132), (7037, 29160), (7290, 28148), (7533, 27240), (8172, 25110), (8370, 24516), (9080, 22599), (9720, 21111), (10044, 20430), (10215, 20088), (11160, 18387), (12258, 16740), (12555, 16344), (13620, 15066), (14074, 14580)]