201854920

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{691}}^1$

素因数の和:878

約数の個数: 64

約数和(自身を含む): 465854400

約数和(自身を除く): 263999480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 109, 134, 218, 268, 335, 436, 536, 545, 670, 691, 872, 1090, 1340, 1382, 2180, 2680, 2764, 3455, 4360, 5528, 6910, 7303, 13820, 14606, 27640, 29212, 36515, 46297, 58424, 73030, 75319, 92594, 146060, 150638, 185188, 231485, 292120, 301276, 370376, 376595, 462970, 602552, 753190, 925940, 1506380, 1851880, 3012760, 5046373, 10092746, 20185492, 25231865, 40370984, 50463730, 100927460, 201854920]

約数ペア:

[(1, 201854920), (2, 100927460), (4, 50463730), (5, 40370984), (8, 25231865), (10, 20185492), (20, 10092746), (40, 5046373), (67, 3012760), (109, 1851880), (134, 1506380), (218, 925940), (268, 753190), (335, 602552), (436, 462970), (536, 376595), (545, 370376), (670, 301276), (691, 292120), (872, 231485), (1090, 185188), (1340, 150638), (1382, 146060), (2180, 92594), (2680, 75319), (2764, 73030), (3455, 58424), (4360, 46297), (5528, 36515), (6910, 29212), (7303, 27640), (13820, 14606)]