379804940

素因数分解:

$2^2\times 5^1\times {\mathrm{18990247}}^1$

素因数の和:18990256

約数の個数: 12

約数和(自身を含む): 797590416

約数和(自身を除く): 417785476

約数列:

[1, 2, 4, 5, 10, 20, 18990247, 37980494, 75960988, 94951235, 189902470, 379804940]

約数ペア:

[(1, 379804940), (2, 189902470), (4, 94951235), (5, 75960988), (10, 37980494), (20, 18990247)]