20212980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2459}}^1$

素因数の和:2608

約数の個数: 48

約数和(自身を含む): 57032640

約数和(自身を除く): 36819660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 137, 274, 411, 548, 685, 822, 1370, 1644, 2055, 2459, 2740, 4110, 4918, 7377, 8220, 9836, 12295, 14754, 24590, 29508, 36885, 49180, 73770, 147540, 336883, 673766, 1010649, 1347532, 1684415, 2021298, 3368830, 4042596, 5053245, 6737660, 10106490, 20212980]

約数ペア:

[(1, 20212980), (2, 10106490), (3, 6737660), (4, 5053245), (5, 4042596), (6, 3368830), (10, 2021298), (12, 1684415), (15, 1347532), (20, 1010649), (30, 673766), (60, 336883), (137, 147540), (274, 73770), (411, 49180), (548, 36885), (685, 29508), (822, 24590), (1370, 14754), (1644, 12295), (2055, 9836), (2459, 8220), (2740, 7377), (4110, 4918)]