19449728

素因数分解:

$2^7\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:175

約数の個数: 64

約数和(自身を含む): 40979520

約数和(自身を除く): 21529792

約数列:

[1, 2, 4, 8, 16, 32, 47, 53, 61, 64, 94, 106, 122, 128, 188, 212, 244, 376, 424, 488, 752, 848, 976, 1504, 1696, 1952, 2491, 2867, 3008, 3233, 3392, 3904, 4982, 5734, 6016, 6466, 6784, 7808, 9964, 11468, 12932, 19928, 22936, 25864, 39856, 45872, 51728, 79712, 91744, 103456, 151951, 159424, 183488, 206912, 303902, 318848, 366976, 413824, 607804, 1215608, 2431216, 4862432, 9724864, 19449728]

約数ペア:

[(1, 19449728), (2, 9724864), (4, 4862432), (8, 2431216), (16, 1215608), (32, 607804), (47, 413824), (53, 366976), (61, 318848), (64, 303902), (94, 206912), (106, 183488), (122, 159424), (128, 151951), (188, 103456), (212, 91744), (244, 79712), (376, 51728), (424, 45872), (488, 39856), (752, 25864), (848, 22936), (976, 19928), (1504, 12932), (1696, 11468), (1952, 9964), (2491, 7808), (2867, 6784), (3008, 6466), (3233, 6016), (3392, 5734), (3904, 4982)]