15404920

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{1091}}^1$

素因数の和:1455

約数の個数: 32

約数和(自身を含む): 34791120

約数和(自身を除く): 19386200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1091, 1412, 1765, 2182, 2824, 3530, 4364, 5455, 7060, 8728, 10910, 14120, 21820, 43640, 385123, 770246, 1540492, 1925615, 3080984, 3851230, 7702460, 15404920]

約数ペア:

[(1, 15404920), (2, 7702460), (4, 3851230), (5, 3080984), (8, 1925615), (10, 1540492), (20, 770246), (40, 385123), (353, 43640), (706, 21820), (1091, 14120), (1412, 10910), (1765, 8728), (2182, 7060), (2824, 5455), (3530, 4364)]