128258480

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{32719}}^1$

素因数の和:32746

約数の個数: 60

約数和(自身を含む): 346897440

約数和(自身を除く): 218638960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 32719, 65438, 130876, 163595, 229033, 261752, 327190, 458066, 523504, 654380, 916132, 1145165, 1308760, 1603231, 1832264, 2290330, 2617520, 3206462, 3664528, 4580660, 6412924, 8016155, 9161320, 12825848, 16032310, 18322640, 25651696, 32064620, 64129240, 128258480]

約数ペア:

[(1, 128258480), (2, 64129240), (4, 32064620), (5, 25651696), (7, 18322640), (8, 16032310), (10, 12825848), (14, 9161320), (16, 8016155), (20, 6412924), (28, 4580660), (35, 3664528), (40, 3206462), (49, 2617520), (56, 2290330), (70, 1832264), (80, 1603231), (98, 1308760), (112, 1145165), (140, 916132), (196, 654380), (245, 523504), (280, 458066), (392, 327190), (490, 261752), (560, 229033), (784, 163595), (980, 130876), (1960, 65438), (3920, 32719)]