238379518

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1\times {\mathrm{491}}^1$

素因数の和:840

約数の個数: 32

約数和(自身を含む): 392781312

約数和(自身を除く): 154401794

約数列:

[1, 2, 13, 26, 71, 142, 263, 491, 526, 923, 982, 1846, 3419, 6383, 6838, 12766, 18673, 34861, 37346, 69722, 129133, 242749, 258266, 453193, 485498, 906386, 1678729, 3357458, 9168443, 18336886, 119189759, 238379518]

約数ペア:

[(1, 238379518), (2, 119189759), (13, 18336886), (26, 9168443), (71, 3357458), (142, 1678729), (263, 906386), (491, 485498), (526, 453193), (923, 258266), (982, 242749), (1846, 129133), (3419, 69722), (6383, 37346), (6838, 34861), (12766, 18673)]