257405759

素因数分解:

${\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{179}}^1$

素因数の和:399

約数の個数: 24

約数和(自身を含む): 286709760

約数和(自身を除く): 29304001

約数列:

[1, 13, 67, 127, 169, 179, 871, 1651, 2327, 8509, 11323, 11993, 21463, 22733, 30251, 110617, 155909, 295529, 1438021, 1523111, 2026817, 3841877, 19800443, 257405759]

約数ペア:

[(1, 257405759), (13, 19800443), (67, 3841877), (127, 2026817), (169, 1523111), (179, 1438021), (871, 295529), (1651, 155909), (2327, 110617), (8509, 30251), (11323, 22733), (11993, 21463)]