25358480

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{6469}}^1$

素因数の和:6496

約数の個数: 60

約数和(自身を含む): 68594940

約数和(自身を除く): 43236460

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, 6469, 12938, 25876, 32345, 45283, 51752, 64690, 90566, 103504, 129380, 181132, 226415, 258760, 316981, 362264, 452830, 517520, 633962, 724528, 905660, 1267924, 1584905, 1811320, 2535848, 3169810, 3622640, 5071696, 6339620, 12679240, 25358480]

約数ペア:

[(1, 25358480), (2, 12679240), (4, 6339620), (5, 5071696), (7, 3622640), (8, 3169810), (10, 2535848), (14, 1811320), (16, 1584905), (20, 1267924), (28, 905660), (35, 724528), (40, 633962), (49, 517520), (56, 452830), (70, 362264), (80, 316981), (98, 258760), (112, 226415), (140, 181132), (196, 129380), (245, 103504), (280, 90566), (392, 64690), (490, 51752), (560, 45283), (784, 32345), (980, 25876), (1960, 12938), (3920, 6469)]