21040560

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1$

素因数の和:233

約数の個数: 200

約数和(自身を含む): 77780736

約数和(自身を除く): 56740176

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 48, 51, 54, 60, 68, 72, 80, 81, 85, 90, 102, 108, 120, 135, 136, 144, 153, 162, 170, 180, 191, 204, 216, 240, 255, 270, 272, 306, 324, 340, 360, 382, 405, 408, 432, 459, 510, 540, 573, 612, 648, 680, 720, 764, 765, 810, 816, 918, 955, 1020, 1080, 1146, 1224, 1296, 1360, 1377, 1528, 1530, 1620, 1719, 1836, 1910, 2040, 2160, 2292, 2295, 2448, 2754, 2865, 3056, 3060, 3240, 3247, 3438, 3672, 3820, 4080, 4584, 4590, 5157, 5508, 5730, 6120, 6480, 6494, 6876, 6885, 7344, 7640, 8595, 9168, 9180, 9741, 10314, 11016, 11460, 12240, 12988, 13752, 13770, 15280, 15471, 16235, 17190, 18360, 19482, 20628, 22032, 22920, 25785, 25976, 27504, 27540, 29223, 30942, 32470, 34380, 36720, 38964, 41256, 45840, 48705, 51570, 51952, 55080, 58446, 61884, 64940, 68760, 77355, 77928, 82512, 87669, 97410, 103140, 110160, 116892, 123768, 129880, 137520, 146115, 154710, 155856, 175338, 194820, 206280, 233784, 247536, 259760, 263007, 292230, 309420, 350676, 389640, 412560, 438345, 467568, 526014, 584460, 618840, 701352, 779280, 876690, 1052028, 1168920, 1237680, 1315035, 1402704, 1753380, 2104056, 2337840, 2630070, 3506760, 4208112, 5260140, 7013520, 10520280, 21040560]

約数ペア:

[(1, 21040560), (2, 10520280), (3, 7013520), (4, 5260140), (5, 4208112), (6, 3506760), (8, 2630070), (9, 2337840), (10, 2104056), (12, 1753380), (15, 1402704), (16, 1315035), (17, 1237680), (18, 1168920), (20, 1052028), (24, 876690), (27, 779280), (30, 701352), (34, 618840), (36, 584460), (40, 526014), (45, 467568), (48, 438345), (51, 412560), (54, 389640), (60, 350676), (68, 309420), (72, 292230), (80, 263007), (81, 259760), (85, 247536), (90, 233784), (102, 206280), (108, 194820), (120, 175338), (135, 155856), (136, 154710), (144, 146115), (153, 137520), (162, 129880), (170, 123768), (180, 116892), (191, 110160), (204, 103140), (216, 97410), (240, 87669), (255, 82512), (270, 77928), (272, 77355), (306, 68760), (324, 64940), (340, 61884), (360, 58446), (382, 55080), (405, 51952), (408, 51570), (432, 48705), (459, 45840), (510, 41256), (540, 38964), (573, 36720), (612, 34380), (648, 32470), (680, 30942), (720, 29223), (764, 27540), (765, 27504), (810, 25976), (816, 25785), (918, 22920), (955, 22032), (1020, 20628), (1080, 19482), (1146, 18360), (1224, 17190), (1296, 16235), (1360, 15471), (1377, 15280), (1528, 13770), (1530, 13752), (1620, 12988), (1719, 12240), (1836, 11460), (1910, 11016), (2040, 10314), (2160, 9741), (2292, 9180), (2295, 9168), (2448, 8595), (2754, 7640), (2865, 7344), (3056, 6885), (3060, 6876), (3240, 6494), (3247, 6480), (3438, 6120), (3672, 5730), (3820, 5508), (4080, 5157), (4584, 4590)]