217868360

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1\times {\mathrm{479}}^1$

素因数の和:710

約数の個数: 64

約数和(自身を含む): 500774400

約数和(自身を除く): 282906040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 137, 166, 274, 332, 415, 479, 548, 664, 685, 830, 958, 1096, 1370, 1660, 1916, 2395, 2740, 3320, 3832, 4790, 5480, 9580, 11371, 19160, 22742, 39757, 45484, 56855, 65623, 79514, 90968, 113710, 131246, 159028, 198785, 227420, 262492, 318056, 328115, 397570, 454840, 524984, 656230, 795140, 1312460, 1590280, 2624920, 5446709, 10893418, 21786836, 27233545, 43573672, 54467090, 108934180, 217868360]

約数ペア:

[(1, 217868360), (2, 108934180), (4, 54467090), (5, 43573672), (8, 27233545), (10, 21786836), (20, 10893418), (40, 5446709), (83, 2624920), (137, 1590280), (166, 1312460), (274, 795140), (332, 656230), (415, 524984), (479, 454840), (548, 397570), (664, 328115), (685, 318056), (830, 262492), (958, 227420), (1096, 198785), (1370, 159028), (1660, 131246), (1916, 113710), (2395, 90968), (2740, 79514), (3320, 65623), (3832, 56855), (4790, 45484), (5480, 39757), (9580, 22742), (11371, 19160)]