21937280

素因数分解:

$2^7\times 5^1\times {\mathrm{151}}^1\times {\mathrm{227}}^1$

素因数の和:397

約数の個数: 64

約数和(自身を含む): 53023680

約数和(自身を除く): 31086400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 151, 160, 227, 302, 320, 454, 604, 640, 755, 908, 1135, 1208, 1510, 1816, 2270, 2416, 3020, 3632, 4540, 4832, 6040, 7264, 9080, 9664, 12080, 14528, 18160, 19328, 24160, 29056, 34277, 36320, 48320, 68554, 72640, 96640, 137108, 145280, 171385, 274216, 342770, 548432, 685540, 1096864, 1371080, 2193728, 2742160, 4387456, 5484320, 10968640, 21937280]

約数ペア:

[(1, 21937280), (2, 10968640), (4, 5484320), (5, 4387456), (8, 2742160), (10, 2193728), (16, 1371080), (20, 1096864), (32, 685540), (40, 548432), (64, 342770), (80, 274216), (128, 171385), (151, 145280), (160, 137108), (227, 96640), (302, 72640), (320, 68554), (454, 48320), (604, 36320), (640, 34277), (755, 29056), (908, 24160), (1135, 19328), (1208, 18160), (1510, 14528), (1816, 12080), (2270, 9664), (2416, 9080), (3020, 7264), (3632, 6040), (4540, 4832)]