257908066

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{1171}}^1$

素因数の和:1426

約数の個数: 32

約数和(自身を含む): 428839488

約数和(自身を除く): 170931422

約数列:

[1, 2, 13, 26, 43, 86, 197, 394, 559, 1118, 1171, 2342, 2561, 5122, 8471, 15223, 16942, 30446, 50353, 100706, 110123, 220246, 230687, 461374, 654589, 1309178, 2998931, 5997862, 9919541, 19839082, 128954033, 257908066]

約数ペア:

[(1, 257908066), (2, 128954033), (13, 19839082), (26, 9919541), (43, 5997862), (86, 2998931), (197, 1309178), (394, 654589), (559, 461374), (1118, 230687), (1171, 220246), (2342, 110123), (2561, 100706), (5122, 50353), (8471, 30446), (15223, 16942)]