28909930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1607}}^1$

素因数の和:1878

約数の個数: 32

約数和(自身を含む): 59740416

約数和(自身を除く): 30830486

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 257, 514, 1285, 1607, 1799, 2570, 3214, 3598, 8035, 8995, 11249, 16070, 17990, 22498, 56245, 112490, 412999, 825998, 2064995, 2890993, 4129990, 5781986, 14454965, 28909930]

約数ペア:

[(1, 28909930), (2, 14454965), (5, 5781986), (7, 4129990), (10, 2890993), (14, 2064995), (35, 825998), (70, 412999), (257, 112490), (514, 56245), (1285, 22498), (1607, 17990), (1799, 16070), (2570, 11249), (3214, 8995), (3598, 8035)]