20974464

素因数分解:

$2^7\times 3^4\times 7^1\times {\mathrm{17}}^2$

素因数の和:67

約数の個数: 240

約数和(自身を含む): 75779880

約数和(自身を除く): 54805416

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 27, 28, 32, 34, 36, 42, 48, 51, 54, 56, 63, 64, 68, 72, 81, 84, 96, 102, 108, 112, 119, 126, 128, 136, 144, 153, 162, 168, 189, 192, 204, 216, 224, 238, 252, 272, 288, 289, 306, 324, 336, 357, 378, 384, 408, 432, 448, 459, 476, 504, 544, 567, 576, 578, 612, 648, 672, 714, 756, 816, 864, 867, 896, 918, 952, 1008, 1071, 1088, 1134, 1152, 1156, 1224, 1296, 1344, 1377, 1428, 1512, 1632, 1728, 1734, 1836, 1904, 2016, 2023, 2142, 2176, 2268, 2312, 2448, 2592, 2601, 2688, 2754, 2856, 3024, 3213, 3264, 3456, 3468, 3672, 3808, 4032, 4046, 4284, 4536, 4624, 4896, 5184, 5202, 5508, 5712, 6048, 6069, 6426, 6528, 6936, 7344, 7616, 7803, 8064, 8092, 8568, 9072, 9248, 9639, 9792, 10368, 10404, 11016, 11424, 12096, 12138, 12852, 13872, 14688, 15232, 15606, 16184, 17136, 18144, 18207, 18496, 19278, 19584, 20808, 22032, 22848, 23409, 24192, 24276, 25704, 27744, 29376, 31212, 32368, 34272, 36288, 36414, 36992, 38556, 41616, 44064, 45696, 46818, 48552, 51408, 54621, 55488, 58752, 62424, 64736, 68544, 72576, 72828, 77112, 83232, 88128, 93636, 97104, 102816, 109242, 110976, 124848, 129472, 137088, 145656, 154224, 163863, 166464, 176256, 187272, 194208, 205632, 218484, 249696, 258944, 291312, 308448, 327726, 332928, 374544, 388416, 411264, 436968, 499392, 582624, 616896, 655452, 749088, 776832, 873936, 998784, 1165248, 1233792, 1310904, 1498176, 1747872, 2330496, 2621808, 2996352, 3495744, 5243616, 6991488, 10487232, 20974464]

約数ペア:

[(1, 20974464), (2, 10487232), (3, 6991488), (4, 5243616), (6, 3495744), (7, 2996352), (8, 2621808), (9, 2330496), (12, 1747872), (14, 1498176), (16, 1310904), (17, 1233792), (18, 1165248), (21, 998784), (24, 873936), (27, 776832), (28, 749088), (32, 655452), (34, 616896), (36, 582624), (42, 499392), (48, 436968), (51, 411264), (54, 388416), (56, 374544), (63, 332928), (64, 327726), (68, 308448), (72, 291312), (81, 258944), (84, 249696), (96, 218484), (102, 205632), (108, 194208), (112, 187272), (119, 176256), (126, 166464), (128, 163863), (136, 154224), (144, 145656), (153, 137088), (162, 129472), (168, 124848), (189, 110976), (192, 109242), (204, 102816), (216, 97104), (224, 93636), (238, 88128), (252, 83232), (272, 77112), (288, 72828), (289, 72576), (306, 68544), (324, 64736), (336, 62424), (357, 58752), (378, 55488), (384, 54621), (408, 51408), (432, 48552), (448, 46818), (459, 45696), (476, 44064), (504, 41616), (544, 38556), (567, 36992), (576, 36414), (578, 36288), (612, 34272), (648, 32368), (672, 31212), (714, 29376), (756, 27744), (816, 25704), (864, 24276), (867, 24192), (896, 23409), (918, 22848), (952, 22032), (1008, 20808), (1071, 19584), (1088, 19278), (1134, 18496), (1152, 18207), (1156, 18144), (1224, 17136), (1296, 16184), (1344, 15606), (1377, 15232), (1428, 14688), (1512, 13872), (1632, 12852), (1728, 12138), (1734, 12096), (1836, 11424), (1904, 11016), (2016, 10404), (2023, 10368), (2142, 9792), (2176, 9639), (2268, 9248), (2312, 9072), (2448, 8568), (2592, 8092), (2601, 8064), (2688, 7803), (2754, 7616), (2856, 7344), (3024, 6936), (3213, 6528), (3264, 6426), (3456, 6069), (3468, 6048), (3672, 5712), (3808, 5508), (4032, 5202), (4046, 5184), (4284, 4896), (4536, 4624)]