388645940

素因数分解:

$2^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{55049}}^1$

素因数の和:55411

約数の個数: 24

約数和(自身を含む): 818483400

約数和(自身を除く): 429837460

約数列:

[1, 2, 4, 5, 10, 20, 353, 706, 1412, 1765, 3530, 7060, 55049, 110098, 220196, 275245, 550490, 1100980, 19432297, 38864594, 77729188, 97161485, 194322970, 388645940]

約数ペア:

[(1, 388645940), (2, 194322970), (4, 97161485), (5, 77729188), (10, 38864594), (20, 19432297), (353, 1100980), (706, 550490), (1412, 275245), (1765, 220196), (3530, 110098), (7060, 55049)]