1640883956

素因数分解:

$2^2\times {\mathrm{43}}^2\times {\mathrm{149}}^1\times {\mathrm{1489}}^1$

素因数の和:1728

約数の個数: 36

約数和(自身を含む): 2961598500

約数和(自身を除く): 1320714544

約数列:

[1, 2, 4, 43, 86, 149, 172, 298, 596, 1489, 1849, 2978, 3698, 5956, 6407, 7396, 12814, 25628, 64027, 128054, 221861, 256108, 275501, 443722, 551002, 887444, 1102004, 2753161, 5506322, 9540023, 11012644, 19080046, 38160092, 410220989, 820441978, 1640883956]

約数ペア:

[(1, 1640883956), (2, 820441978), (4, 410220989), (43, 38160092), (86, 19080046), (149, 11012644), (172, 9540023), (298, 5506322), (596, 2753161), (1489, 1102004), (1849, 887444), (2978, 551002), (3698, 443722), (5956, 275501), (6407, 256108), (7396, 221861), (12814, 128054), (25628, 64027)]