12720279656

素因数分解:

$2^3\times 7^2\times {\mathrm{47}}^1\times {\mathrm{690419}}^1$

素因数の和:690486

約数の個数: 48

約数和(自身を含む): 28334836800

約数和(自身を除く): 15614557144

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 49, 56, 94, 98, 188, 196, 329, 376, 392, 658, 1316, 2303, 2632, 4606, 9212, 18424, 690419, 1380838, 2761676, 4832933, 5523352, 9665866, 19331732, 32449693, 33830531, 38663464, 64899386, 67661062, 129798772, 135322124, 227147851, 259597544, 270644248, 454295702, 908591404, 1590034957, 1817182808, 3180069914, 6360139828, 12720279656]

約数ペア:

[(1, 12720279656), (2, 6360139828), (4, 3180069914), (7, 1817182808), (8, 1590034957), (14, 908591404), (28, 454295702), (47, 270644248), (49, 259597544), (56, 227147851), (94, 135322124), (98, 129798772), (188, 67661062), (196, 64899386), (329, 38663464), (376, 33830531), (392, 32449693), (658, 19331732), (1316, 9665866), (2303, 5523352), (2632, 4832933), (4606, 2761676), (9212, 1380838), (18424, 690419)]