20685630

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{719}}^1$

素因数の和:873

約数の個数: 64

約数和(自身を含む): 57231360

約数和(自身を除く): 36545730

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 137, 210, 274, 411, 685, 719, 822, 959, 1370, 1438, 1918, 2055, 2157, 2877, 3595, 4110, 4314, 4795, 5033, 5754, 7190, 9590, 10066, 10785, 14385, 15099, 21570, 25165, 28770, 30198, 50330, 75495, 98503, 150990, 197006, 295509, 492515, 591018, 689521, 985030, 1379042, 1477545, 2068563, 2955090, 3447605, 4137126, 6895210, 10342815, 20685630]

約数ペア:

[(1, 20685630), (2, 10342815), (3, 6895210), (5, 4137126), (6, 3447605), (7, 2955090), (10, 2068563), (14, 1477545), (15, 1379042), (21, 985030), (30, 689521), (35, 591018), (42, 492515), (70, 295509), (105, 197006), (137, 150990), (210, 98503), (274, 75495), (411, 50330), (685, 30198), (719, 28770), (822, 25165), (959, 21570), (1370, 15099), (1438, 14385), (1918, 10785), (2055, 10066), (2157, 9590), (2877, 7190), (3595, 5754), (4110, 5033), (4314, 4795)]