256785438

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{470303}}^1$

素因数の和:470328

約数の個数: 32

約数和(自身を含む): 632088576

約数和(自身を除く): 375303138

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 273, 546, 470303, 940606, 1410909, 2821818, 3292121, 6113939, 6584242, 9876363, 12227878, 18341817, 19752726, 36683634, 42797573, 85595146, 128392719, 256785438]

約数ペア:

[(1, 256785438), (2, 128392719), (3, 85595146), (6, 42797573), (7, 36683634), (13, 19752726), (14, 18341817), (21, 12227878), (26, 9876363), (39, 6584242), (42, 6113939), (78, 3292121), (91, 2821818), (182, 1410909), (273, 940606), (546, 470303)]