639481518

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{143833}}^1$

素因数の和:143873

約数の個数: 48

約数和(自身を含む): 1570667280

約数和(自身を除く): 931185762

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 38, 39, 57, 78, 114, 117, 171, 234, 247, 342, 494, 741, 1482, 2223, 4446, 143833, 287666, 431499, 862998, 1294497, 1869829, 2588994, 2732827, 3739658, 5465654, 5609487, 8198481, 11218974, 16396962, 16828461, 24595443, 33656922, 35526751, 49190886, 71053502, 106580253, 213160506, 319740759, 639481518]

約数ペア:

[(1, 639481518), (2, 319740759), (3, 213160506), (6, 106580253), (9, 71053502), (13, 49190886), (18, 35526751), (19, 33656922), (26, 24595443), (38, 16828461), (39, 16396962), (57, 11218974), (78, 8198481), (114, 5609487), (117, 5465654), (171, 3739658), (234, 2732827), (247, 2588994), (342, 1869829), (494, 1294497), (741, 862998), (1482, 431499), (2223, 287666), (4446, 143833)]