639643802

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{269}}^1$

素因数の和:495

約数の個数: 64

約数和(自身を含む): 1188794880

約数和(自身を除く): 549151078

約数列:

[1, 2, 7, 14, 17, 34, 97, 103, 119, 194, 206, 238, 269, 538, 679, 721, 1358, 1442, 1649, 1751, 1883, 3298, 3502, 3766, 4573, 9146, 9991, 11543, 12257, 19982, 23086, 24514, 26093, 27707, 32011, 52186, 55414, 64022, 69937, 139874, 169847, 182651, 193949, 339694, 365302, 387898, 443581, 471019, 887162, 942038, 1188929, 2377858, 2687579, 3105067, 3297133, 5375158, 6210134, 6594266, 18813053, 37626106, 45688843, 91377686, 319821901, 639643802]

約数ペア:

[(1, 639643802), (2, 319821901), (7, 91377686), (14, 45688843), (17, 37626106), (34, 18813053), (97, 6594266), (103, 6210134), (119, 5375158), (194, 3297133), (206, 3105067), (238, 2687579), (269, 2377858), (538, 1188929), (679, 942038), (721, 887162), (1358, 471019), (1442, 443581), (1649, 387898), (1751, 365302), (1883, 339694), (3298, 193949), (3502, 182651), (3766, 169847), (4573, 139874), (9146, 69937), (9991, 64022), (11543, 55414), (12257, 52186), (19982, 32011), (23086, 27707), (24514, 26093)]