19914580

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{2903}}^1$

素因数の和:2933

約数の個数: 48

約数和(自身を含む): 48787200

約数和(自身を除く): 28872620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 2903, 3430, 5806, 6860, 11612, 14515, 20321, 29030, 40642, 58060, 81284, 101605, 142247, 203210, 284494, 406420, 568988, 711235, 995729, 1422470, 1991458, 2844940, 3982916, 4978645, 9957290, 19914580]

約数ペア:

[(1, 19914580), (2, 9957290), (4, 4978645), (5, 3982916), (7, 2844940), (10, 1991458), (14, 1422470), (20, 995729), (28, 711235), (35, 568988), (49, 406420), (70, 284494), (98, 203210), (140, 142247), (196, 101605), (245, 81284), (343, 58060), (490, 40642), (686, 29030), (980, 20321), (1372, 14515), (1715, 11612), (2903, 6860), (3430, 5806)]