21092600

素因数分解:

$2^3\times 5^2\times {\mathrm{263}}^1\times {\mathrm{401}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 49349520

約数和(自身を除く): 28256920

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 263, 401, 526, 802, 1052, 1315, 1604, 2005, 2104, 2630, 3208, 4010, 5260, 6575, 8020, 10025, 10520, 13150, 16040, 20050, 26300, 40100, 52600, 80200, 105463, 210926, 421852, 527315, 843704, 1054630, 2109260, 2636575, 4218520, 5273150, 10546300, 21092600]

約数ペア:

[(1, 21092600), (2, 10546300), (4, 5273150), (5, 4218520), (8, 2636575), (10, 2109260), (20, 1054630), (25, 843704), (40, 527315), (50, 421852), (100, 210926), (200, 105463), (263, 80200), (401, 52600), (526, 40100), (802, 26300), (1052, 20050), (1315, 16040), (1604, 13150), (2005, 10520), (2104, 10025), (2630, 8020), (3208, 6575), (4010, 5260)]