28457130

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{557}}^1$

素因数の和:711

約数の個数: 64

約数和(自身を含む): 74245248

約数和(自身を除く): 45788118

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 131, 195, 262, 390, 393, 557, 655, 786, 1114, 1310, 1671, 1703, 1965, 2785, 3342, 3406, 3930, 5109, 5570, 7241, 8355, 8515, 10218, 14482, 16710, 17030, 21723, 25545, 36205, 43446, 51090, 72410, 72967, 108615, 145934, 217230, 218901, 364835, 437802, 729670, 948571, 1094505, 1897142, 2189010, 2845713, 4742855, 5691426, 9485710, 14228565, 28457130]

約数ペア:

[(1, 28457130), (2, 14228565), (3, 9485710), (5, 5691426), (6, 4742855), (10, 2845713), (13, 2189010), (15, 1897142), (26, 1094505), (30, 948571), (39, 729670), (65, 437802), (78, 364835), (130, 218901), (131, 217230), (195, 145934), (262, 108615), (390, 72967), (393, 72410), (557, 51090), (655, 43446), (786, 36205), (1114, 25545), (1310, 21723), (1671, 17030), (1703, 16710), (1965, 14482), (2785, 10218), (3342, 8515), (3406, 8355), (3930, 7241), (5109, 5570)]