20393568

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^2\times {\mathrm{419}}^1$

素因数の和:461

約数の個数: 108

約数和(自身を含む): 62948340

約数和(自身を除く): 42554772

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 169, 208, 234, 288, 312, 338, 416, 419, 468, 507, 624, 676, 838, 936, 1014, 1248, 1257, 1352, 1521, 1676, 1872, 2028, 2514, 2704, 3042, 3352, 3744, 3771, 4056, 5028, 5408, 5447, 6084, 6704, 7542, 8112, 10056, 10894, 12168, 13408, 15084, 16224, 16341, 20112, 21788, 24336, 30168, 32682, 40224, 43576, 48672, 49023, 60336, 65364, 70811, 87152, 98046, 120672, 130728, 141622, 174304, 196092, 212433, 261456, 283244, 392184, 424866, 522912, 566488, 637299, 784368, 849732, 1132976, 1274598, 1568736, 1699464, 2265952, 2549196, 3398928, 5098392, 6797856, 10196784, 20393568]

約数ペア:

[(1, 20393568), (2, 10196784), (3, 6797856), (4, 5098392), (6, 3398928), (8, 2549196), (9, 2265952), (12, 1699464), (13, 1568736), (16, 1274598), (18, 1132976), (24, 849732), (26, 784368), (32, 637299), (36, 566488), (39, 522912), (48, 424866), (52, 392184), (72, 283244), (78, 261456), (96, 212433), (104, 196092), (117, 174304), (144, 141622), (156, 130728), (169, 120672), (208, 98046), (234, 87152), (288, 70811), (312, 65364), (338, 60336), (416, 49023), (419, 48672), (468, 43576), (507, 40224), (624, 32682), (676, 30168), (838, 24336), (936, 21788), (1014, 20112), (1248, 16341), (1257, 16224), (1352, 15084), (1521, 13408), (1676, 12168), (1872, 10894), (2028, 10056), (2514, 8112), (2704, 7542), (3042, 6704), (3352, 6084), (3744, 5447), (3771, 5408), (4056, 5028)]