257400494

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{230233}}^1$

素因数の和:230291

約数の個数: 16

約数和(自身を含む): 425472432

約数和(自身を除く): 168071938

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 230233, 460466, 2993029, 5986058, 9900019, 19800038, 128700247, 257400494]

約数ペア:

[(1, 257400494), (2, 128700247), (13, 19800038), (26, 9900019), (43, 5986058), (86, 2993029), (559, 460466), (1118, 230233)]