268071680

素因数分解:

$2^8\times 5^1\times {\mathrm{209431}}^1$

素因数の和:209452

約数の個数: 36

約数和(自身を含む): 642118512

約数和(自身を除く): 374046832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 209431, 418862, 837724, 1047155, 1675448, 2094310, 3350896, 4188620, 6701792, 8377240, 13403584, 16754480, 26807168, 33508960, 53614336, 67017920, 134035840, 268071680]

約数ペア:

[(1, 268071680), (2, 134035840), (4, 67017920), (5, 53614336), (8, 33508960), (10, 26807168), (16, 16754480), (20, 13403584), (32, 8377240), (40, 6701792), (64, 4188620), (80, 3350896), (128, 2094310), (160, 1675448), (256, 1047155), (320, 837724), (640, 418862), (1280, 209431)]