19988856

素因数分解:

$2^3\times 3^4\times {\mathrm{109}}^1\times {\mathrm{283}}^1$

素因数の和:410

約数の個数: 80

約数和(自身を含む): 56700600

約数和(自身を除く): 36711744

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 109, 162, 216, 218, 283, 324, 327, 436, 566, 648, 654, 849, 872, 981, 1132, 1308, 1698, 1962, 2264, 2547, 2616, 2943, 3396, 3924, 5094, 5886, 6792, 7641, 7848, 8829, 10188, 11772, 15282, 17658, 20376, 22923, 23544, 30564, 30847, 35316, 45846, 61128, 61694, 70632, 91692, 92541, 123388, 183384, 185082, 246776, 277623, 370164, 555246, 740328, 832869, 1110492, 1665738, 2220984, 2498607, 3331476, 4997214, 6662952, 9994428, 19988856]

約数ペア:

[(1, 19988856), (2, 9994428), (3, 6662952), (4, 4997214), (6, 3331476), (8, 2498607), (9, 2220984), (12, 1665738), (18, 1110492), (24, 832869), (27, 740328), (36, 555246), (54, 370164), (72, 277623), (81, 246776), (108, 185082), (109, 183384), (162, 123388), (216, 92541), (218, 91692), (283, 70632), (324, 61694), (327, 61128), (436, 45846), (566, 35316), (648, 30847), (654, 30564), (849, 23544), (872, 22923), (981, 20376), (1132, 17658), (1308, 15282), (1698, 11772), (1962, 10188), (2264, 8829), (2547, 7848), (2616, 7641), (2943, 6792), (3396, 5886), (3924, 5094)]