215540640

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{21383}}^1$

素因数の和:21411

約数の個数: 144

約数和(自身を含む): 840647808

約数和(自身を除く): 625107168

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 10080, 21383, 42766, 64149, 85532, 106915, 128298, 149681, 171064, 192447, 213830, 256596, 299362, 320745, 342128, 384894, 427660, 449043, 513192, 598724, 641490, 684256, 748405, 769788, 855320, 898086, 962235, 1026384, 1197448, 1282980, 1347129, 1496810, 1539576, 1710640, 1796172, 1924470, 2052768, 2245215, 2394896, 2565960, 2694258, 2993620, 3079152, 3421280, 3592344, 3848940, 4490430, 4789792, 5131920, 5388516, 5987240, 6158304, 6735645, 7184688, 7697880, 8980860, 10263840, 10777032, 11974480, 13471290, 14369376, 15395760, 17961720, 21554064, 23948960, 26942580, 30791520, 35923440, 43108128, 53885160, 71846880, 107770320, 215540640]

約数ペア:

[(1, 215540640), (2, 107770320), (3, 71846880), (4, 53885160), (5, 43108128), (6, 35923440), (7, 30791520), (8, 26942580), (9, 23948960), (10, 21554064), (12, 17961720), (14, 15395760), (15, 14369376), (16, 13471290), (18, 11974480), (20, 10777032), (21, 10263840), (24, 8980860), (28, 7697880), (30, 7184688), (32, 6735645), (35, 6158304), (36, 5987240), (40, 5388516), (42, 5131920), (45, 4789792), (48, 4490430), (56, 3848940), (60, 3592344), (63, 3421280), (70, 3079152), (72, 2993620), (80, 2694258), (84, 2565960), (90, 2394896), (96, 2245215), (105, 2052768), (112, 1924470), (120, 1796172), (126, 1710640), (140, 1539576), (144, 1496810), (160, 1347129), (168, 1282980), (180, 1197448), (210, 1026384), (224, 962235), (240, 898086), (252, 855320), (280, 769788), (288, 748405), (315, 684256), (336, 641490), (360, 598724), (420, 513192), (480, 449043), (504, 427660), (560, 384894), (630, 342128), (672, 320745), (720, 299362), (840, 256596), (1008, 213830), (1120, 192447), (1260, 171064), (1440, 149681), (1680, 128298), (2016, 106915), (2520, 85532), (3360, 64149), (5040, 42766), (10080, 21383)]