19801710

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{220019}}^1$

素因数の和:220032

約数の個数: 24

約数和(自身を含む): 51484680

約数和(自身を除く): 31682970

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 220019, 440038, 660057, 1100095, 1320114, 1980171, 2200190, 3300285, 3960342, 6600570, 9900855, 19801710]

約数ペア:

[(1, 19801710), (2, 9900855), (3, 6600570), (5, 3960342), (6, 3300285), (9, 2200190), (10, 1980171), (15, 1320114), (18, 1100095), (30, 660057), (45, 440038), (90, 220019)]