217207620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:295

約数の個数: 288

約数和(自身を含む): 814894080

約数和(自身を除く): 597686460

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 43, 45, 57, 60, 63, 70, 76, 84, 86, 90, 95, 105, 114, 126, 129, 133, 140, 171, 172, 180, 190, 210, 211, 215, 228, 252, 258, 266, 285, 301, 315, 342, 380, 387, 399, 420, 422, 430, 516, 532, 570, 602, 630, 633, 645, 665, 684, 774, 798, 817, 844, 855, 860, 903, 1055, 1140, 1197, 1204, 1260, 1266, 1290, 1330, 1477, 1505, 1548, 1596, 1634, 1710, 1806, 1899, 1935, 1995, 2110, 2394, 2451, 2532, 2580, 2660, 2709, 2954, 3010, 3165, 3268, 3420, 3612, 3798, 3870, 3990, 4009, 4085, 4220, 4431, 4515, 4788, 4902, 5418, 5719, 5908, 5985, 6020, 6330, 7353, 7385, 7596, 7740, 7980, 8018, 8170, 8862, 9030, 9073, 9495, 9804, 10836, 11438, 11970, 12027, 12255, 12660, 13293, 13545, 14706, 14770, 16036, 16340, 17157, 17724, 18060, 18146, 18990, 20045, 22155, 22876, 23940, 24054, 24510, 26586, 27090, 27219, 28063, 28595, 29412, 29540, 34314, 36081, 36292, 36765, 37980, 40090, 44310, 45365, 48108, 49020, 51471, 53172, 54180, 54438, 56126, 57190, 60135, 63511, 66465, 68628, 72162, 73530, 80180, 81657, 84189, 85785, 88620, 90730, 102942, 108876, 112252, 114380, 120270, 127022, 132930, 136095, 140315, 144324, 147060, 163314, 168378, 171570, 172387, 180405, 181460, 190533, 205884, 240540, 252567, 254044, 257355, 265860, 272190, 280630, 317555, 326628, 336756, 343140, 344774, 360810, 381066, 408285, 420945, 505134, 514710, 517161, 544380, 561260, 571599, 635110, 689548, 721620, 762132, 816570, 841890, 861935, 952665, 1010268, 1029420, 1034322, 1143198, 1206709, 1262835, 1270220, 1551483, 1633140, 1683780, 1723870, 1905330, 2068644, 2286396, 2413418, 2525670, 2585805, 2857995, 3102966, 3447740, 3620127, 3810660, 4826836, 5051340, 5171610, 5715990, 6033545, 6205932, 7240254, 7757415, 10343220, 10860381, 11431980, 12067090, 14480508, 15514830, 18100635, 21720762, 24134180, 31029660, 36201270, 43441524, 54301905, 72402540, 108603810, 217207620]

約数ペア:

[(1, 217207620), (2, 108603810), (3, 72402540), (4, 54301905), (5, 43441524), (6, 36201270), (7, 31029660), (9, 24134180), (10, 21720762), (12, 18100635), (14, 15514830), (15, 14480508), (18, 12067090), (19, 11431980), (20, 10860381), (21, 10343220), (28, 7757415), (30, 7240254), (35, 6205932), (36, 6033545), (38, 5715990), (42, 5171610), (43, 5051340), (45, 4826836), (57, 3810660), (60, 3620127), (63, 3447740), (70, 3102966), (76, 2857995), (84, 2585805), (86, 2525670), (90, 2413418), (95, 2286396), (105, 2068644), (114, 1905330), (126, 1723870), (129, 1683780), (133, 1633140), (140, 1551483), (171, 1270220), (172, 1262835), (180, 1206709), (190, 1143198), (210, 1034322), (211, 1029420), (215, 1010268), (228, 952665), (252, 861935), (258, 841890), (266, 816570), (285, 762132), (301, 721620), (315, 689548), (342, 635110), (380, 571599), (387, 561260), (399, 544380), (420, 517161), (422, 514710), (430, 505134), (516, 420945), (532, 408285), (570, 381066), (602, 360810), (630, 344774), (633, 343140), (645, 336756), (665, 326628), (684, 317555), (774, 280630), (798, 272190), (817, 265860), (844, 257355), (855, 254044), (860, 252567), (903, 240540), (1055, 205884), (1140, 190533), (1197, 181460), (1204, 180405), (1260, 172387), (1266, 171570), (1290, 168378), (1330, 163314), (1477, 147060), (1505, 144324), (1548, 140315), (1596, 136095), (1634, 132930), (1710, 127022), (1806, 120270), (1899, 114380), (1935, 112252), (1995, 108876), (2110, 102942), (2394, 90730), (2451, 88620), (2532, 85785), (2580, 84189), (2660, 81657), (2709, 80180), (2954, 73530), (3010, 72162), (3165, 68628), (3268, 66465), (3420, 63511), (3612, 60135), (3798, 57190), (3870, 56126), (3990, 54438), (4009, 54180), (4085, 53172), (4220, 51471), (4431, 49020), (4515, 48108), (4788, 45365), (4902, 44310), (5418, 40090), (5719, 37980), (5908, 36765), (5985, 36292), (6020, 36081), (6330, 34314), (7353, 29540), (7385, 29412), (7596, 28595), (7740, 28063), (7980, 27219), (8018, 27090), (8170, 26586), (8862, 24510), (9030, 24054), (9073, 23940), (9495, 22876), (9804, 22155), (10836, 20045), (11438, 18990), (11970, 18146), (12027, 18060), (12255, 17724), (12660, 17157), (13293, 16340), (13545, 16036), (14706, 14770)]