257623782

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{881}}^1$

素因数の和:1085

約数の個数: 64

約数和(自身を含む): 583220736

約数和(自身を除く): 325596954

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 138, 163, 299, 326, 489, 598, 881, 897, 978, 1762, 1794, 2119, 2643, 3749, 4238, 5286, 6357, 7498, 11247, 11453, 12714, 20263, 22494, 22906, 34359, 40526, 48737, 60789, 68718, 97474, 121578, 143603, 146211, 263419, 287206, 292422, 430809, 526838, 790257, 861618, 1580514, 1866839, 3302869, 3733678, 5600517, 6605738, 9908607, 11201034, 19817214, 42937297, 85874594, 128811891, 257623782]

約数ペア:

[(1, 257623782), (2, 128811891), (3, 85874594), (6, 42937297), (13, 19817214), (23, 11201034), (26, 9908607), (39, 6605738), (46, 5600517), (69, 3733678), (78, 3302869), (138, 1866839), (163, 1580514), (299, 861618), (326, 790257), (489, 526838), (598, 430809), (881, 292422), (897, 287206), (978, 263419), (1762, 146211), (1794, 143603), (2119, 121578), (2643, 97474), (3749, 68718), (4238, 60789), (5286, 48737), (6357, 40526), (7498, 34359), (11247, 22906), (11453, 22494), (12714, 20263)]