388672280

素因数分解:

$2^3\times 5^1\times {\mathrm{9716807}}^1$

素因数の和:9716818

約数の個数: 16

約数和(自身を含む): 874512720

約数和(自身を除く): 485840440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9716807, 19433614, 38867228, 48584035, 77734456, 97168070, 194336140, 388672280]

約数ペア:

[(1, 388672280), (2, 194336140), (4, 97168070), (5, 77734456), (8, 48584035), (10, 38867228), (20, 19433614), (40, 9716807)]