209799748

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1\times {\mathrm{191}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 395136000

約数和(自身を除く): 185336252

約数列:

[1, 2, 4, 19, 38, 76, 97, 149, 191, 194, 298, 382, 388, 596, 764, 1843, 2831, 3629, 3686, 5662, 7258, 7372, 11324, 14453, 14516, 18527, 28459, 28906, 37054, 56918, 57812, 74108, 113836, 274607, 352013, 540721, 549214, 704026, 1081442, 1098428, 1408052, 2162884, 2760523, 5521046, 11042092, 52449937, 104899874, 209799748]

約数ペア:

[(1, 209799748), (2, 104899874), (4, 52449937), (19, 11042092), (38, 5521046), (76, 2760523), (97, 2162884), (149, 1408052), (191, 1098428), (194, 1081442), (298, 704026), (382, 549214), (388, 540721), (596, 352013), (764, 274607), (1843, 113836), (2831, 74108), (3629, 57812), (3686, 56918), (5662, 37054), (7258, 28906), (7372, 28459), (11324, 18527), (14453, 14516)]