257865594

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{130631}}^1$

素因数の和:130690

約数の個数: 32

約数和(自身を含む): 601952256

約数和(自身を除く): 344086662

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 94, 141, 282, 329, 658, 987, 1974, 130631, 261262, 391893, 783786, 914417, 1828834, 2743251, 5486502, 6139657, 12279314, 18418971, 36837942, 42977599, 85955198, 128932797, 257865594]

約数ペア:

[(1, 257865594), (2, 128932797), (3, 85955198), (6, 42977599), (7, 36837942), (14, 18418971), (21, 12279314), (42, 6139657), (47, 5486502), (94, 2743251), (141, 1828834), (282, 914417), (329, 783786), (658, 391893), (987, 261262), (1974, 130631)]