20830490

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1\times {\mathrm{251}}^1$

素因数の和:494

約数の個数: 32

約数和(自身を含む): 38719296

約数和(自身を除く): 17888806

約数列:

[1, 2, 5, 10, 43, 86, 193, 215, 251, 386, 430, 502, 965, 1255, 1930, 2510, 8299, 10793, 16598, 21586, 41495, 48443, 53965, 82990, 96886, 107930, 242215, 484430, 2083049, 4166098, 10415245, 20830490]

約数ペア:

[(1, 20830490), (2, 10415245), (5, 4166098), (10, 2083049), (43, 484430), (86, 242215), (193, 107930), (215, 96886), (251, 82990), (386, 53965), (430, 48443), (502, 41495), (965, 21586), (1255, 16598), (1930, 10793), (2510, 8299)]