257401768

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{23131}}^1$

素因数の和:23257

約数の個数: 32

約数和(自身を含む): 524633760

約数和(自身を除く): 267231992

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 107, 214, 428, 856, 1391, 2782, 5564, 11128, 23131, 46262, 92524, 185048, 300703, 601406, 1202812, 2405624, 2475017, 4950034, 9900068, 19800136, 32175221, 64350442, 128700884, 257401768]

約数ペア:

[(1, 257401768), (2, 128700884), (4, 64350442), (8, 32175221), (13, 19800136), (26, 9900068), (52, 4950034), (104, 2475017), (107, 2405624), (214, 1202812), (428, 601406), (856, 300703), (1391, 185048), (2782, 92524), (5564, 46262), (11128, 23131)]