20856528

素因数分解:

$2^4\times 3^4\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1$

素因数の和:68

約数の個数: 300

約数和(自身を含む): 79821280

約数和(自身を除く): 58964752

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, 19, 21, 22, 24, 27, 28, 33, 36, 38, 42, 44, 48, 54, 56, 57, 63, 66, 72, 76, 77, 81, 84, 88, 99, 108, 112, 114, 121, 126, 132, 133, 144, 152, 154, 162, 168, 171, 176, 189, 198, 209, 216, 228, 231, 242, 252, 264, 266, 297, 304, 308, 324, 336, 342, 363, 378, 396, 399, 418, 432, 456, 462, 484, 504, 513, 528, 532, 567, 594, 616, 627, 648, 684, 693, 726, 756, 792, 798, 836, 847, 891, 912, 924, 968, 1008, 1026, 1064, 1089, 1134, 1188, 1197, 1232, 1254, 1296, 1368, 1386, 1452, 1463, 1512, 1539, 1584, 1596, 1672, 1694, 1782, 1848, 1881, 1936, 2052, 2079, 2128, 2178, 2268, 2299, 2376, 2394, 2508, 2541, 2736, 2772, 2904, 2926, 3024, 3078, 3192, 3267, 3344, 3388, 3564, 3591, 3696, 3762, 4104, 4158, 4356, 4389, 4536, 4598, 4752, 4788, 5016, 5082, 5544, 5643, 5808, 5852, 6156, 6237, 6384, 6534, 6776, 6897, 7128, 7182, 7524, 7623, 8208, 8316, 8712, 8778, 9072, 9196, 9576, 9801, 10032, 10164, 10773, 11088, 11286, 11704, 12312, 12474, 13068, 13167, 13552, 13794, 14256, 14364, 15048, 15246, 16093, 16632, 16929, 17424, 17556, 18392, 19152, 19602, 20328, 20691, 21546, 22572, 22869, 23408, 24624, 24948, 26136, 26334, 27588, 28728, 30096, 30492, 32186, 33264, 33858, 35112, 36784, 39204, 39501, 40656, 41382, 43092, 45144, 45738, 48279, 49896, 52272, 52668, 55176, 57456, 60984, 62073, 64372, 67716, 68607, 70224, 78408, 79002, 82764, 86184, 90288, 91476, 96558, 99792, 105336, 110352, 118503, 121968, 124146, 128744, 135432, 137214, 144837, 156816, 158004, 165528, 172368, 182952, 186219, 193116, 210672, 237006, 248292, 257488, 270864, 274428, 289674, 316008, 331056, 365904, 372438, 386232, 434511, 474012, 496584, 548856, 579348, 632016, 744876, 772464, 869022, 948024, 993168, 1097712, 1158696, 1303533, 1489752, 1738044, 1896048, 2317392, 2607066, 2979504, 3476088, 5214132, 6952176, 10428264, 20856528]

約数ペア:

[(1, 20856528), (2, 10428264), (3, 6952176), (4, 5214132), (6, 3476088), (7, 2979504), (8, 2607066), (9, 2317392), (11, 1896048), (12, 1738044), (14, 1489752), (16, 1303533), (18, 1158696), (19, 1097712), (21, 993168), (22, 948024), (24, 869022), (27, 772464), (28, 744876), (33, 632016), (36, 579348), (38, 548856), (42, 496584), (44, 474012), (48, 434511), (54, 386232), (56, 372438), (57, 365904), (63, 331056), (66, 316008), (72, 289674), (76, 274428), (77, 270864), (81, 257488), (84, 248292), (88, 237006), (99, 210672), (108, 193116), (112, 186219), (114, 182952), (121, 172368), (126, 165528), (132, 158004), (133, 156816), (144, 144837), (152, 137214), (154, 135432), (162, 128744), (168, 124146), (171, 121968), (176, 118503), (189, 110352), (198, 105336), (209, 99792), (216, 96558), (228, 91476), (231, 90288), (242, 86184), (252, 82764), (264, 79002), (266, 78408), (297, 70224), (304, 68607), (308, 67716), (324, 64372), (336, 62073), (342, 60984), (363, 57456), (378, 55176), (396, 52668), (399, 52272), (418, 49896), (432, 48279), (456, 45738), (462, 45144), (484, 43092), (504, 41382), (513, 40656), (528, 39501), (532, 39204), (567, 36784), (594, 35112), (616, 33858), (627, 33264), (648, 32186), (684, 30492), (693, 30096), (726, 28728), (756, 27588), (792, 26334), (798, 26136), (836, 24948), (847, 24624), (891, 23408), (912, 22869), (924, 22572), (968, 21546), (1008, 20691), (1026, 20328), (1064, 19602), (1089, 19152), (1134, 18392), (1188, 17556), (1197, 17424), (1232, 16929), (1254, 16632), (1296, 16093), (1368, 15246), (1386, 15048), (1452, 14364), (1463, 14256), (1512, 13794), (1539, 13552), (1584, 13167), (1596, 13068), (1672, 12474), (1694, 12312), (1782, 11704), (1848, 11286), (1881, 11088), (1936, 10773), (2052, 10164), (2079, 10032), (2128, 9801), (2178, 9576), (2268, 9196), (2299, 9072), (2376, 8778), (2394, 8712), (2508, 8316), (2541, 8208), (2736, 7623), (2772, 7524), (2904, 7182), (2926, 7128), (3024, 6897), (3078, 6776), (3192, 6534), (3267, 6384), (3344, 6237), (3388, 6156), (3564, 5852), (3591, 5808), (3696, 5643), (3762, 5544), (4104, 5082), (4158, 5016), (4356, 4788), (4389, 4752), (4536, 4598)]