2220738

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:490

約数の個数: 32

約数和(自身を含む): 4862592

約数和(自身を除く): 2641854

約数列:

[1, 2, 3, 6, 13, 26, 39, 71, 78, 142, 213, 401, 426, 802, 923, 1203, 1846, 2406, 2769, 5213, 5538, 10426, 15639, 28471, 31278, 56942, 85413, 170826, 370123, 740246, 1110369, 2220738]

約数ペア:

[(1, 2220738), (2, 1110369), (3, 740246), (6, 370123), (13, 170826), (26, 85413), (39, 56942), (71, 31278), (78, 28471), (142, 15639), (213, 10426), (401, 5538), (426, 5213), (802, 2769), (923, 2406), (1203, 1846)]