28264816

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:397

約数の個数: 40

約数和(自身を含む): 56246400

約数和(自身を除く): 27981584

約数列:

[1, 2, 4, 8, 16, 71, 139, 142, 179, 278, 284, 358, 556, 568, 716, 1112, 1136, 1432, 2224, 2864, 9869, 12709, 19738, 24881, 25418, 39476, 49762, 50836, 78952, 99524, 101672, 157904, 199048, 203344, 398096, 1766551, 3533102, 7066204, 14132408, 28264816]

約数ペア:

[(1, 28264816), (2, 14132408), (4, 7066204), (8, 3533102), (16, 1766551), (71, 398096), (139, 203344), (142, 199048), (179, 157904), (278, 101672), (284, 99524), (358, 78952), (556, 50836), (568, 49762), (716, 39476), (1112, 25418), (1136, 24881), (1432, 19738), (2224, 12709), (2864, 9869)]