20685930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2683}}^1$

素因数の和:2950

約数の個数: 32

約数和(自身を含む): 49857984

約数和(自身を除く): 29172054

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 257, 514, 771, 1285, 1542, 2570, 2683, 3855, 5366, 7710, 8049, 13415, 16098, 26830, 40245, 80490, 689531, 1379062, 2068593, 3447655, 4137186, 6895310, 10342965, 20685930]

約数ペア:

[(1, 20685930), (2, 10342965), (3, 6895310), (5, 4137186), (6, 3447655), (10, 2068593), (15, 1379062), (30, 689531), (257, 80490), (514, 40245), (771, 26830), (1285, 16098), (1542, 13415), (2570, 8049), (2683, 7710), (3855, 5366)]