19980032

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{4591}}^1$

素因数の和:4624

約数の個数: 36

約数和(自身を含む): 42237216

約数和(自身を除く): 22257184

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 544, 1088, 2176, 4352, 4591, 9182, 18364, 36728, 73456, 78047, 146912, 156094, 293824, 312188, 587648, 624376, 1175296, 1248752, 2497504, 4995008, 9990016, 19980032]

約数ペア:

[(1, 19980032), (2, 9990016), (4, 4995008), (8, 2497504), (16, 1248752), (17, 1175296), (32, 624376), (34, 587648), (64, 312188), (68, 293824), (128, 156094), (136, 146912), (256, 78047), (272, 73456), (544, 36728), (1088, 18364), (2176, 9182), (4352, 4591)]