20723472

素因数分解:

$2^4\times 3^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1$

素因数の和:131

約数の個数: 240

約数和(自身を含む): 76334400

約数和(自身を除く): 55610928

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, 21, 22, 24, 27, 28, 33, 36, 42, 44, 48, 49, 54, 56, 63, 66, 72, 77, 84, 88, 89, 98, 99, 108, 112, 126, 132, 144, 147, 154, 168, 176, 178, 189, 196, 198, 216, 231, 252, 264, 267, 294, 297, 308, 336, 356, 378, 392, 396, 432, 441, 462, 504, 528, 534, 539, 588, 594, 616, 623, 693, 712, 756, 784, 792, 801, 882, 924, 979, 1008, 1068, 1078, 1176, 1188, 1232, 1246, 1323, 1386, 1424, 1512, 1584, 1602, 1617, 1764, 1848, 1869, 1958, 2079, 2136, 2156, 2352, 2376, 2403, 2492, 2646, 2772, 2937, 3024, 3204, 3234, 3528, 3696, 3738, 3916, 4158, 4272, 4312, 4361, 4752, 4806, 4851, 4984, 5292, 5544, 5607, 5874, 6408, 6468, 6853, 7056, 7476, 7832, 8316, 8624, 8722, 8811, 9612, 9702, 9968, 10584, 11088, 11214, 11748, 12816, 12936, 13083, 13706, 14553, 14952, 15664, 16632, 16821, 17444, 17622, 19224, 19404, 20559, 21168, 22428, 23496, 25872, 26166, 26433, 27412, 29106, 29904, 33264, 33642, 34888, 35244, 38448, 38808, 39249, 41118, 44856, 46992, 47971, 52332, 52866, 54824, 58212, 61677, 67284, 69776, 70488, 77616, 78498, 82236, 89712, 95942, 104664, 105732, 109648, 116424, 117747, 123354, 134568, 140976, 143913, 156996, 164472, 185031, 191884, 209328, 211464, 232848, 235494, 246708, 269136, 287826, 313992, 328944, 370062, 383768, 422928, 431739, 470988, 493416, 575652, 627984, 740124, 767536, 863478, 941976, 986832, 1151304, 1295217, 1480248, 1726956, 1883952, 2302608, 2590434, 2960496, 3453912, 5180868, 6907824, 10361736, 20723472]

約数ペア:

[(1, 20723472), (2, 10361736), (3, 6907824), (4, 5180868), (6, 3453912), (7, 2960496), (8, 2590434), (9, 2302608), (11, 1883952), (12, 1726956), (14, 1480248), (16, 1295217), (18, 1151304), (21, 986832), (22, 941976), (24, 863478), (27, 767536), (28, 740124), (33, 627984), (36, 575652), (42, 493416), (44, 470988), (48, 431739), (49, 422928), (54, 383768), (56, 370062), (63, 328944), (66, 313992), (72, 287826), (77, 269136), (84, 246708), (88, 235494), (89, 232848), (98, 211464), (99, 209328), (108, 191884), (112, 185031), (126, 164472), (132, 156996), (144, 143913), (147, 140976), (154, 134568), (168, 123354), (176, 117747), (178, 116424), (189, 109648), (196, 105732), (198, 104664), (216, 95942), (231, 89712), (252, 82236), (264, 78498), (267, 77616), (294, 70488), (297, 69776), (308, 67284), (336, 61677), (356, 58212), (378, 54824), (392, 52866), (396, 52332), (432, 47971), (441, 46992), (462, 44856), (504, 41118), (528, 39249), (534, 38808), (539, 38448), (588, 35244), (594, 34888), (616, 33642), (623, 33264), (693, 29904), (712, 29106), (756, 27412), (784, 26433), (792, 26166), (801, 25872), (882, 23496), (924, 22428), (979, 21168), (1008, 20559), (1068, 19404), (1078, 19224), (1176, 17622), (1188, 17444), (1232, 16821), (1246, 16632), (1323, 15664), (1386, 14952), (1424, 14553), (1512, 13706), (1584, 13083), (1602, 12936), (1617, 12816), (1764, 11748), (1848, 11214), (1869, 11088), (1958, 10584), (2079, 9968), (2136, 9702), (2156, 9612), (2352, 8811), (2376, 8722), (2403, 8624), (2492, 8316), (2646, 7832), (2772, 7476), (2937, 7056), (3024, 6853), (3204, 6468), (3234, 6408), (3528, 5874), (3696, 5607), (3738, 5544), (3916, 5292), (4158, 4984), (4272, 4851), (4312, 4806), (4361, 4752)]