390097900

素因数分解:

$2^2\times 5^2\times {\mathrm{157}}^1\times {\mathrm{24847}}^1$

素因数の和:25018

約数の個数: 36

約数和(自身を含む): 851938528

約数和(自身を除く): 461840628

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 157, 314, 628, 785, 1570, 3140, 3925, 7850, 15700, 24847, 49694, 99388, 124235, 248470, 496940, 621175, 1242350, 2484700, 3900979, 7801958, 15603916, 19504895, 39009790, 78019580, 97524475, 195048950, 390097900]

約数ペア:

[(1, 390097900), (2, 195048950), (4, 97524475), (5, 78019580), (10, 39009790), (20, 19504895), (25, 15603916), (50, 7801958), (100, 3900979), (157, 2484700), (314, 1242350), (628, 621175), (785, 496940), (1570, 248470), (3140, 124235), (3925, 99388), (7850, 49694), (15700, 24847)]