20768384

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1783}}^1$

素因数の和:1817

約数の個数: 64

約数和(自身を含む): 50951040

約数和(自身を除く): 30182656

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 364, 416, 448, 728, 832, 896, 1456, 1664, 1783, 2912, 3566, 5824, 7132, 11648, 12481, 14264, 23179, 24962, 28528, 46358, 49924, 57056, 92716, 99848, 114112, 162253, 185432, 199696, 228224, 324506, 370864, 399392, 649012, 741728, 798784, 1298024, 1483456, 1597568, 2596048, 2966912, 5192096, 10384192, 20768384]

約数ペア:

[(1, 20768384), (2, 10384192), (4, 5192096), (7, 2966912), (8, 2596048), (13, 1597568), (14, 1483456), (16, 1298024), (26, 798784), (28, 741728), (32, 649012), (52, 399392), (56, 370864), (64, 324506), (91, 228224), (104, 199696), (112, 185432), (128, 162253), (182, 114112), (208, 99848), (224, 92716), (364, 57056), (416, 49924), (448, 46358), (728, 28528), (832, 24962), (896, 23179), (1456, 14264), (1664, 12481), (1783, 11648), (2912, 7132), (3566, 5824)]