30809840

素因数分解:

$2^4\times 5^1\times {\mathrm{353}}^1\times {\mathrm{1091}}^1$

素因数の和:1457

約数の個数: 40

約数和(自身を含む): 71901648

約数和(自身を除く): 41091808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353, 706, 1091, 1412, 1765, 2182, 2824, 3530, 4364, 5455, 5648, 7060, 8728, 10910, 14120, 17456, 21820, 28240, 43640, 87280, 385123, 770246, 1540492, 1925615, 3080984, 3851230, 6161968, 7702460, 15404920, 30809840]

約数ペア:

[(1, 30809840), (2, 15404920), (4, 7702460), (5, 6161968), (8, 3851230), (10, 3080984), (16, 1925615), (20, 1540492), (40, 770246), (80, 385123), (353, 87280), (706, 43640), (1091, 28240), (1412, 21820), (1765, 17456), (2182, 14120), (2824, 10910), (3530, 8728), (4364, 7060), (5455, 5648)]