42940660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1019}}^1$

素因数の和:1085

約数の個数: 72

約数和(自身を含む): 107442720

約数和(自身を除く): 64502060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 430, 490, 602, 860, 980, 1019, 1204, 1505, 2038, 2107, 3010, 4076, 4214, 5095, 6020, 7133, 8428, 10190, 10535, 14266, 20380, 21070, 28532, 35665, 42140, 43817, 49931, 71330, 87634, 99862, 142660, 175268, 199724, 219085, 249655, 306719, 438170, 499310, 613438, 876340, 998620, 1226876, 1533595, 2147033, 3067190, 4294066, 6134380, 8588132, 10735165, 21470330, 42940660]

約数ペア:

[(1, 42940660), (2, 21470330), (4, 10735165), (5, 8588132), (7, 6134380), (10, 4294066), (14, 3067190), (20, 2147033), (28, 1533595), (35, 1226876), (43, 998620), (49, 876340), (70, 613438), (86, 499310), (98, 438170), (140, 306719), (172, 249655), (196, 219085), (215, 199724), (245, 175268), (301, 142660), (430, 99862), (490, 87634), (602, 71330), (860, 49931), (980, 43817), (1019, 42140), (1204, 35665), (1505, 28532), (2038, 21070), (2107, 20380), (3010, 14266), (4076, 10535), (4214, 10190), (5095, 8428), (6020, 7133)]