256538984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{19423}}^1$

素因数の和:19569

約数の個数: 32

約数和(自身を含む): 522117120

約数和(自身を除く): 265578136

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 127, 254, 508, 1016, 1651, 3302, 6604, 13208, 19423, 38846, 77692, 155384, 252499, 504998, 1009996, 2019992, 2466721, 4933442, 9866884, 19733768, 32067373, 64134746, 128269492, 256538984]

約数ペア:

[(1, 256538984), (2, 128269492), (4, 64134746), (8, 32067373), (13, 19733768), (26, 9866884), (52, 4933442), (104, 2466721), (127, 2019992), (254, 1009996), (508, 504998), (1016, 252499), (1651, 155384), (3302, 77692), (6604, 38846), (13208, 19423)]