20213820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:153

約数の個数: 192

約数和(自身を含む): 71124480

約数和(自身を除く): 50910660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 41, 44, 45, 54, 55, 60, 66, 82, 83, 90, 99, 108, 110, 123, 132, 135, 164, 165, 166, 180, 198, 205, 220, 246, 249, 270, 297, 330, 332, 369, 396, 410, 415, 451, 492, 495, 498, 540, 594, 615, 660, 738, 747, 820, 830, 902, 913, 990, 996, 1107, 1188, 1230, 1245, 1353, 1476, 1485, 1494, 1660, 1804, 1826, 1845, 1980, 2214, 2241, 2255, 2460, 2490, 2706, 2739, 2970, 2988, 3403, 3652, 3690, 3735, 4059, 4428, 4482, 4510, 4565, 4980, 5412, 5478, 5535, 5940, 6765, 6806, 7380, 7470, 8118, 8217, 8964, 9020, 9130, 10209, 10956, 11070, 11205, 12177, 13530, 13612, 13695, 14940, 16236, 16434, 17015, 18260, 20295, 20418, 22140, 22410, 24354, 24651, 27060, 27390, 30627, 32868, 34030, 37433, 40590, 40836, 41085, 44820, 48708, 49302, 51045, 54780, 60885, 61254, 68060, 74866, 81180, 82170, 91881, 98604, 102090, 112299, 121770, 122508, 123255, 149732, 153135, 164340, 183762, 187165, 204180, 224598, 243540, 246510, 306270, 336897, 367524, 374330, 449196, 459405, 493020, 561495, 612540, 673794, 748660, 918810, 1010691, 1122990, 1347588, 1684485, 1837620, 2021382, 2245980, 3368970, 4042764, 5053455, 6737940, 10106910, 20213820]

約数ペア:

[(1, 20213820), (2, 10106910), (3, 6737940), (4, 5053455), (5, 4042764), (6, 3368970), (9, 2245980), (10, 2021382), (11, 1837620), (12, 1684485), (15, 1347588), (18, 1122990), (20, 1010691), (22, 918810), (27, 748660), (30, 673794), (33, 612540), (36, 561495), (41, 493020), (44, 459405), (45, 449196), (54, 374330), (55, 367524), (60, 336897), (66, 306270), (82, 246510), (83, 243540), (90, 224598), (99, 204180), (108, 187165), (110, 183762), (123, 164340), (132, 153135), (135, 149732), (164, 123255), (165, 122508), (166, 121770), (180, 112299), (198, 102090), (205, 98604), (220, 91881), (246, 82170), (249, 81180), (270, 74866), (297, 68060), (330, 61254), (332, 60885), (369, 54780), (396, 51045), (410, 49302), (415, 48708), (451, 44820), (492, 41085), (495, 40836), (498, 40590), (540, 37433), (594, 34030), (615, 32868), (660, 30627), (738, 27390), (747, 27060), (820, 24651), (830, 24354), (902, 22410), (913, 22140), (990, 20418), (996, 20295), (1107, 18260), (1188, 17015), (1230, 16434), (1245, 16236), (1353, 14940), (1476, 13695), (1485, 13612), (1494, 13530), (1660, 12177), (1804, 11205), (1826, 11070), (1845, 10956), (1980, 10209), (2214, 9130), (2241, 9020), (2255, 8964), (2460, 8217), (2490, 8118), (2706, 7470), (2739, 7380), (2970, 6806), (2988, 6765), (3403, 5940), (3652, 5535), (3690, 5478), (3735, 5412), (4059, 4980), (4428, 4565), (4482, 4510)]