128156560

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{32693}}^1$

素因数の和:32720

約数の個数: 60

約数和(自身を含む): 346621788

約数和(自身を除く): 218465228

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, 32693, 65386, 130772, 163465, 228851, 261544, 326930, 457702, 523088, 653860, 915404, 1144255, 1307720, 1601957, 1830808, 2288510, 2615440, 3203914, 3661616, 4577020, 6407828, 8009785, 9154040, 12815656, 16019570, 18308080, 25631312, 32039140, 64078280, 128156560]

約数ペア:

[(1, 128156560), (2, 64078280), (4, 32039140), (5, 25631312), (7, 18308080), (8, 16019570), (10, 12815656), (14, 9154040), (16, 8009785), (20, 6407828), (28, 4577020), (35, 3661616), (40, 3203914), (49, 2615440), (56, 2288510), (70, 1830808), (80, 1601957), (98, 1307720), (112, 1144255), (140, 915404), (196, 653860), (245, 523088), (280, 457702), (392, 326930), (490, 261544), (560, 228851), (784, 163465), (980, 130772), (1960, 65386), (3920, 32693)]