256967984

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{176489}}^1$

素因数の和:176517

約数の個数: 40

約数和(自身を含む): 612773280

約数和(自身を除く): 355805296

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 176489, 352978, 705956, 1235423, 1411912, 2294357, 2470846, 2823824, 4588714, 4941692, 9177428, 9883384, 16060499, 18354856, 19766768, 32120998, 36709712, 64241996, 128483992, 256967984]

約数ペア:

[(1, 256967984), (2, 128483992), (4, 64241996), (7, 36709712), (8, 32120998), (13, 19766768), (14, 18354856), (16, 16060499), (26, 9883384), (28, 9177428), (52, 4941692), (56, 4588714), (91, 2823824), (104, 2470846), (112, 2294357), (182, 1411912), (208, 1235423), (364, 705956), (728, 352978), (1456, 176489)]