20307728

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5849}}^1$

素因数の和:5895

約数の個数: 40

約数和(自身を含む): 46425600

約数和(自身を除く): 26117872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 5849, 11698, 23396, 40943, 46792, 81886, 93584, 163772, 181319, 327544, 362638, 655088, 725276, 1269233, 1450552, 2538466, 2901104, 5076932, 10153864, 20307728]

約数ペア:

[(1, 20307728), (2, 10153864), (4, 5076932), (7, 2901104), (8, 2538466), (14, 1450552), (16, 1269233), (28, 725276), (31, 655088), (56, 362638), (62, 327544), (112, 181319), (124, 163772), (217, 93584), (248, 81886), (434, 46792), (496, 40943), (868, 23396), (1736, 11698), (3472, 5849)]