20384784

素因数分解:

$2^4\times 3^5\times 7^2\times {\mathrm{107}}^1$

素因数の和:144

約数の個数: 180

約数和(自身を含む): 69464304

約数和(自身を除く): 49079520

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 36, 42, 48, 49, 54, 56, 63, 72, 81, 84, 98, 107, 108, 112, 126, 144, 147, 162, 168, 189, 196, 214, 216, 243, 252, 294, 321, 324, 336, 378, 392, 428, 432, 441, 486, 504, 567, 588, 642, 648, 749, 756, 784, 856, 882, 963, 972, 1008, 1134, 1176, 1284, 1296, 1323, 1498, 1512, 1701, 1712, 1764, 1926, 1944, 2247, 2268, 2352, 2568, 2646, 2889, 2996, 3024, 3402, 3528, 3852, 3888, 3969, 4494, 4536, 5136, 5243, 5292, 5778, 5992, 6741, 6804, 7056, 7704, 7938, 8667, 8988, 9072, 10486, 10584, 11556, 11907, 11984, 13482, 13608, 15408, 15729, 15876, 17334, 17976, 20223, 20972, 21168, 23112, 23814, 26001, 26964, 27216, 31458, 31752, 34668, 35952, 40446, 41944, 46224, 47187, 47628, 52002, 53928, 60669, 62916, 63504, 69336, 80892, 83888, 94374, 95256, 104004, 107856, 121338, 125832, 138672, 141561, 161784, 182007, 188748, 190512, 208008, 242676, 251664, 283122, 323568, 364014, 377496, 416016, 424683, 485352, 566244, 728028, 754992, 849366, 970704, 1132488, 1274049, 1456056, 1698732, 2264976, 2548098, 2912112, 3397464, 5096196, 6794928, 10192392, 20384784]

約数ペア:

[(1, 20384784), (2, 10192392), (3, 6794928), (4, 5096196), (6, 3397464), (7, 2912112), (8, 2548098), (9, 2264976), (12, 1698732), (14, 1456056), (16, 1274049), (18, 1132488), (21, 970704), (24, 849366), (27, 754992), (28, 728028), (36, 566244), (42, 485352), (48, 424683), (49, 416016), (54, 377496), (56, 364014), (63, 323568), (72, 283122), (81, 251664), (84, 242676), (98, 208008), (107, 190512), (108, 188748), (112, 182007), (126, 161784), (144, 141561), (147, 138672), (162, 125832), (168, 121338), (189, 107856), (196, 104004), (214, 95256), (216, 94374), (243, 83888), (252, 80892), (294, 69336), (321, 63504), (324, 62916), (336, 60669), (378, 53928), (392, 52002), (428, 47628), (432, 47187), (441, 46224), (486, 41944), (504, 40446), (567, 35952), (588, 34668), (642, 31752), (648, 31458), (749, 27216), (756, 26964), (784, 26001), (856, 23814), (882, 23112), (963, 21168), (972, 20972), (1008, 20223), (1134, 17976), (1176, 17334), (1284, 15876), (1296, 15729), (1323, 15408), (1498, 13608), (1512, 13482), (1701, 11984), (1712, 11907), (1764, 11556), (1926, 10584), (1944, 10486), (2247, 9072), (2268, 8988), (2352, 8667), (2568, 7938), (2646, 7704), (2889, 7056), (2996, 6804), (3024, 6741), (3402, 5992), (3528, 5778), (3852, 5292), (3888, 5243), (3969, 5136), (4494, 4536)]