256724972

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{281}}^1\times {\mathrm{487}}^1$

素因数の和:846

約数の個数: 48

約数和(自身を含む): 524041728

約数和(自身を除く): 267316756

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 268, 281, 469, 487, 562, 938, 974, 1124, 1876, 1948, 1967, 3409, 3934, 6818, 7868, 13636, 18827, 32629, 37654, 65258, 75308, 130516, 131789, 136847, 228403, 263578, 273694, 456806, 527156, 547388, 913612, 957929, 1915858, 3831716, 9168749, 18337498, 36674996, 64181243, 128362486, 256724972]

約数ペア:

[(1, 256724972), (2, 128362486), (4, 64181243), (7, 36674996), (14, 18337498), (28, 9168749), (67, 3831716), (134, 1915858), (268, 957929), (281, 913612), (469, 547388), (487, 527156), (562, 456806), (938, 273694), (974, 263578), (1124, 228403), (1876, 136847), (1948, 131789), (1967, 130516), (3409, 75308), (3934, 65258), (6818, 37654), (7868, 32629), (13636, 18827)]