1521680260

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{17657}}^1$

素因数の和:17836

約数の個数: 48

約数和(自身を含む): 3322529280

約数和(自身を除く): 1800849020

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 139, 155, 278, 310, 556, 620, 695, 1390, 2780, 4309, 8618, 17236, 17657, 21545, 35314, 43090, 70628, 86180, 88285, 176570, 353140, 547367, 1094734, 2189468, 2454323, 2736835, 4908646, 5473670, 9817292, 10947340, 12271615, 24543230, 49086460, 76084013, 152168026, 304336052, 380420065, 760840130, 1521680260]

約数ペア:

[(1, 1521680260), (2, 760840130), (4, 380420065), (5, 304336052), (10, 152168026), (20, 76084013), (31, 49086460), (62, 24543230), (124, 12271615), (139, 10947340), (155, 9817292), (278, 5473670), (310, 4908646), (556, 2736835), (620, 2454323), (695, 2189468), (1390, 1094734), (2780, 547367), (4309, 353140), (8618, 176570), (17236, 88285), (17657, 86180), (21545, 70628), (35314, 43090)]