19808940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{330149}}^1$

素因数の和:330161

約数の個数: 24

約数和(自身を含む): 55465200

約数和(自身を除く): 35656260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 330149, 660298, 990447, 1320596, 1650745, 1980894, 3301490, 3961788, 4952235, 6602980, 9904470, 19808940]

約数ペア:

[(1, 19808940), (2, 9904470), (3, 6602980), (4, 4952235), (5, 3961788), (6, 3301490), (10, 1980894), (12, 1650745), (15, 1320596), (20, 990447), (30, 660298), (60, 330149)]