30298660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{719}}^1$

素因数の和:785

約数の個数: 72

約数和(自身を含む): 75841920

約数和(自身を除く): 45543260

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, 719, 860, 980, 1204, 1438, 1505, 2107, 2876, 3010, 3595, 4214, 5033, 6020, 7190, 8428, 10066, 10535, 14380, 20132, 21070, 25165, 30917, 35231, 42140, 50330, 61834, 70462, 100660, 123668, 140924, 154585, 176155, 216419, 309170, 352310, 432838, 618340, 704620, 865676, 1082095, 1514933, 2164190, 3029866, 4328380, 6059732, 7574665, 15149330, 30298660]

約数ペア:

[(1, 30298660), (2, 15149330), (4, 7574665), (5, 6059732), (7, 4328380), (10, 3029866), (14, 2164190), (20, 1514933), (28, 1082095), (35, 865676), (43, 704620), (49, 618340), (70, 432838), (86, 352310), (98, 309170), (140, 216419), (172, 176155), (196, 154585), (215, 140924), (245, 123668), (301, 100660), (430, 70462), (490, 61834), (602, 50330), (719, 42140), (860, 35231), (980, 30917), (1204, 25165), (1438, 21070), (1505, 20132), (2107, 14380), (2876, 10535), (3010, 10066), (3595, 8428), (4214, 7190), (5033, 6020)]