420039995

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{353}}^1\times {\mathrm{13999}}^1$

素因数の和:14374

約数の個数: 16

約数和(自身を含む): 535248000

約数和(自身を除く): 115208005

約数列:

[1, 5, 17, 85, 353, 1765, 6001, 13999, 30005, 69995, 237983, 1189915, 4941647, 24708235, 84007999, 420039995]

約数ペア:

[(1, 420039995), (5, 84007999), (17, 24708235), (85, 4941647), (353, 1189915), (1765, 237983), (6001, 69995), (13999, 30005)]