20481424

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1193}}^1$

素因数の和:1267

約数の個数: 40

約数和(自身を含む): 42195960

約数和(自身を除く): 21714536

約数列:

[1, 2, 4, 8, 16, 29, 37, 58, 74, 116, 148, 232, 296, 464, 592, 1073, 1193, 2146, 2386, 4292, 4772, 8584, 9544, 17168, 19088, 34597, 44141, 69194, 88282, 138388, 176564, 276776, 353128, 553552, 706256, 1280089, 2560178, 5120356, 10240712, 20481424]

約数ペア:

[(1, 20481424), (2, 10240712), (4, 5120356), (8, 2560178), (16, 1280089), (29, 706256), (37, 553552), (58, 353128), (74, 276776), (116, 176564), (148, 138388), (232, 88282), (296, 69194), (464, 44141), (592, 34597), (1073, 19088), (1193, 17168), (2146, 9544), (2386, 8584), (4292, 4772)]