20820384

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:179

約数の個数: 144

約数和(自身を含む): 65493792

約数和(自身を除く): 44673408

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 67, 72, 78, 83, 96, 104, 117, 134, 144, 156, 166, 201, 208, 234, 249, 268, 288, 312, 332, 402, 416, 468, 498, 536, 603, 624, 664, 747, 804, 871, 936, 996, 1072, 1079, 1206, 1248, 1328, 1494, 1608, 1742, 1872, 1992, 2144, 2158, 2412, 2613, 2656, 2988, 3216, 3237, 3484, 3744, 3984, 4316, 4824, 5226, 5561, 5976, 6432, 6474, 6968, 7839, 7968, 8632, 9648, 9711, 10452, 11122, 11952, 12948, 13936, 15678, 16683, 17264, 19296, 19422, 20904, 22244, 23904, 25896, 27872, 31356, 33366, 34528, 38844, 41808, 44488, 50049, 51792, 62712, 66732, 72293, 77688, 83616, 88976, 100098, 103584, 125424, 133464, 144586, 155376, 177952, 200196, 216879, 250848, 266928, 289172, 310752, 400392, 433758, 533856, 578344, 650637, 800784, 867516, 1156688, 1301274, 1601568, 1735032, 2313376, 2602548, 3470064, 5205096, 6940128, 10410192, 20820384]

約数ペア:

[(1, 20820384), (2, 10410192), (3, 6940128), (4, 5205096), (6, 3470064), (8, 2602548), (9, 2313376), (12, 1735032), (13, 1601568), (16, 1301274), (18, 1156688), (24, 867516), (26, 800784), (32, 650637), (36, 578344), (39, 533856), (48, 433758), (52, 400392), (67, 310752), (72, 289172), (78, 266928), (83, 250848), (96, 216879), (104, 200196), (117, 177952), (134, 155376), (144, 144586), (156, 133464), (166, 125424), (201, 103584), (208, 100098), (234, 88976), (249, 83616), (268, 77688), (288, 72293), (312, 66732), (332, 62712), (402, 51792), (416, 50049), (468, 44488), (498, 41808), (536, 38844), (603, 34528), (624, 33366), (664, 31356), (747, 27872), (804, 25896), (871, 23904), (936, 22244), (996, 20904), (1072, 19422), (1079, 19296), (1206, 17264), (1248, 16683), (1328, 15678), (1494, 13936), (1608, 12948), (1742, 11952), (1872, 11122), (1992, 10452), (2144, 9711), (2158, 9648), (2412, 8632), (2613, 7968), (2656, 7839), (2988, 6968), (3216, 6474), (3237, 6432), (3484, 5976), (3744, 5561), (3984, 5226), (4316, 4824)]