208806314

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{401}}^1$

素因数の和:686

約数の個数: 32

約数和(自身を含む): 336908160

約数和(自身を除く): 128101846

約数列:

[1, 2, 19, 38, 71, 142, 193, 386, 401, 802, 1349, 2698, 3667, 7334, 7619, 13703, 15238, 27406, 28471, 56942, 77393, 154786, 260357, 520714, 540949, 1081898, 1470467, 2940934, 5494903, 10989806, 104403157, 208806314]

約数ペア:

[(1, 208806314), (2, 104403157), (19, 10989806), (38, 5494903), (71, 2940934), (142, 1470467), (193, 1081898), (386, 540949), (401, 520714), (802, 260357), (1349, 154786), (2698, 77393), (3667, 56942), (7334, 28471), (7619, 27406), (13703, 15238)]