25464280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15527}}^1$

素因数の和:15579

約数の個数: 32

約数和(自身を含む): 58695840

約数和(自身を除く): 33231560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 15527, 31054, 62108, 77635, 124216, 155270, 310540, 621080, 636607, 1273214, 2546428, 3183035, 5092856, 6366070, 12732140, 25464280]

約数ペア:

[(1, 25464280), (2, 12732140), (4, 6366070), (5, 5092856), (8, 3183035), (10, 2546428), (20, 1273214), (40, 636607), (41, 621080), (82, 310540), (164, 155270), (205, 124216), (328, 77635), (410, 62108), (820, 31054), (1640, 15527)]