31835120

素因数分解:

$2^4\times 5^1\times {\mathrm{397939}}^1$

素因数の和:397952

約数の個数: 20

約数和(自身を含む): 74016840

約数和(自身を除く): 42181720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397939, 795878, 1591756, 1989695, 3183512, 3979390, 6367024, 7958780, 15917560, 31835120]

約数ペア:

[(1, 31835120), (2, 15917560), (4, 7958780), (5, 6367024), (8, 3979390), (10, 3183512), (16, 1989695), (20, 1591756), (40, 795878), (80, 397939)]