281608418

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{2903}}^1$

素因数の和:2979

約数の個数: 48

約数和(自身を含む): 535683456

約数和(自身を除く): 254075038

約数列:

[1, 2, 7, 13, 14, 26, 41, 82, 91, 169, 182, 287, 338, 533, 574, 1066, 1183, 2366, 2903, 3731, 5806, 6929, 7462, 13858, 20321, 37739, 40642, 48503, 75478, 97006, 119023, 238046, 264173, 490607, 528346, 833161, 981214, 1547299, 1666322, 3094598, 3434249, 6868498, 10831093, 20114887, 21662186, 40229774, 140804209, 281608418]

約数ペア:

[(1, 281608418), (2, 140804209), (7, 40229774), (13, 21662186), (14, 20114887), (26, 10831093), (41, 6868498), (82, 3434249), (91, 3094598), (169, 1666322), (182, 1547299), (287, 981214), (338, 833161), (533, 528346), (574, 490607), (1066, 264173), (1183, 238046), (2366, 119023), (2903, 97006), (3731, 75478), (5806, 48503), (6929, 40642), (7462, 37739), (13858, 20321)]