19782464

素因数分解:

$2^6\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:128

約数の個数: 84

約数和(自身を含む): 44622720

約数和(自身を除く): 24840256

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 59, 62, 64, 104, 118, 124, 169, 208, 236, 248, 338, 403, 416, 472, 496, 676, 767, 806, 832, 944, 992, 1352, 1534, 1612, 1829, 1888, 1984, 2704, 3068, 3224, 3658, 3776, 5239, 5408, 6136, 6448, 7316, 9971, 10478, 10816, 12272, 12896, 14632, 19942, 20956, 23777, 24544, 25792, 29264, 39884, 41912, 47554, 49088, 58528, 79768, 83824, 95108, 117056, 159536, 167648, 190216, 309101, 319072, 335296, 380432, 618202, 638144, 760864, 1236404, 1521728, 2472808, 4945616, 9891232, 19782464]

約数ペア:

[(1, 19782464), (2, 9891232), (4, 4945616), (8, 2472808), (13, 1521728), (16, 1236404), (26, 760864), (31, 638144), (32, 618202), (52, 380432), (59, 335296), (62, 319072), (64, 309101), (104, 190216), (118, 167648), (124, 159536), (169, 117056), (208, 95108), (236, 83824), (248, 79768), (338, 58528), (403, 49088), (416, 47554), (472, 41912), (496, 39884), (676, 29264), (767, 25792), (806, 24544), (832, 23777), (944, 20956), (992, 19942), (1352, 14632), (1534, 12896), (1612, 12272), (1829, 10816), (1888, 10478), (1984, 9971), (2704, 7316), (3068, 6448), (3224, 6136), (3658, 5408), (3776, 5239)]