20455980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{340933}}^1$

素因数の和:340945

約数の個数: 24

約数和(自身を含む): 57276912

約数和(自身を除く): 36820932

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 340933, 681866, 1022799, 1363732, 1704665, 2045598, 3409330, 4091196, 5113995, 6818660, 10227990, 20455980]

約数ペア:

[(1, 20455980), (2, 10227990), (3, 6818660), (4, 5113995), (5, 4091196), (6, 3409330), (10, 2045598), (12, 1704665), (15, 1363732), (20, 1022799), (30, 681866), (60, 340933)]