18241280

素因数分解:

$2^8\times 5^1\times {\mathrm{14251}}^1$

素因数の和:14272

約数の個数: 36

約数和(自身を含む): 43696632

約数和(自身を除く): 25455352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 14251, 28502, 57004, 71255, 114008, 142510, 228016, 285020, 456032, 570040, 912064, 1140080, 1824128, 2280160, 3648256, 4560320, 9120640, 18241280]

約数ペア:

[(1, 18241280), (2, 9120640), (4, 4560320), (5, 3648256), (8, 2280160), (10, 1824128), (16, 1140080), (20, 912064), (32, 570040), (40, 456032), (64, 285020), (80, 228016), (128, 142510), (160, 114008), (256, 71255), (320, 57004), (640, 28502), (1280, 14251)]