256250384

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{72469}}^1$

素因数の和:72507

約数の個数: 40

約数和(自身を含む): 566135640

約数和(自身を除く): 309885256

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 72469, 144938, 289876, 579752, 942097, 1159504, 1231973, 1884194, 2463946, 3768388, 4927892, 7536776, 9855784, 15073552, 16015649, 19711568, 32031298, 64062596, 128125192, 256250384]

約数ペア:

[(1, 256250384), (2, 128125192), (4, 64062596), (8, 32031298), (13, 19711568), (16, 16015649), (17, 15073552), (26, 9855784), (34, 7536776), (52, 4927892), (68, 3768388), (104, 2463946), (136, 1884194), (208, 1231973), (221, 1159504), (272, 942097), (442, 579752), (884, 289876), (1768, 144938), (3536, 72469)]