406979180

素因数分解:

$2^2\times 5^1\times {\mathrm{1553}}^1\times {\mathrm{13103}}^1$

素因数の和:14665

約数の個数: 24

約数和(自身を含む): 855271872

約数和(自身を除く): 448292692

約数列:

[1, 2, 4, 5, 10, 20, 1553, 3106, 6212, 7765, 13103, 15530, 26206, 31060, 52412, 65515, 131030, 262060, 20348959, 40697918, 81395836, 101744795, 203489590, 406979180]

約数ペア:

[(1, 406979180), (2, 203489590), (4, 101744795), (5, 81395836), (10, 40697918), (20, 20348959), (1553, 262060), (3106, 131030), (6212, 65515), (7765, 52412), (13103, 31060), (15530, 26206)]