20415680

素因数分解:

$2^6\times 5^1\times {\mathrm{63799}}^1$

素因数の和:63816

約数の個数: 28

約数和(自身を含む): 48615600

約数和(自身を除く): 28199920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 63799, 127598, 255196, 318995, 510392, 637990, 1020784, 1275980, 2041568, 2551960, 4083136, 5103920, 10207840, 20415680]

約数ペア:

[(1, 20415680), (2, 10207840), (4, 5103920), (5, 4083136), (8, 2551960), (10, 2041568), (16, 1275980), (20, 1020784), (32, 637990), (40, 510392), (64, 318995), (80, 255196), (160, 127598), (320, 63799)]