15872780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{937}}^1$

素因数の和:975

約数の個数: 72

約数和(自身を含む): 41917344

約数和(自身を除く): 26044564

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 937, 1210, 1540, 1694, 1874, 2420, 3388, 3748, 4235, 4685, 6559, 8470, 9370, 10307, 13118, 16940, 18740, 20614, 26236, 32795, 41228, 51535, 65590, 72149, 103070, 113377, 131180, 144298, 206140, 226754, 288596, 360745, 453508, 566885, 721490, 793639, 1133770, 1442980, 1587278, 2267540, 3174556, 3968195, 7936390, 15872780]

約数ペア:

[(1, 15872780), (2, 7936390), (4, 3968195), (5, 3174556), (7, 2267540), (10, 1587278), (11, 1442980), (14, 1133770), (20, 793639), (22, 721490), (28, 566885), (35, 453508), (44, 360745), (55, 288596), (70, 226754), (77, 206140), (110, 144298), (121, 131180), (140, 113377), (154, 103070), (220, 72149), (242, 65590), (308, 51535), (385, 41228), (484, 32795), (605, 26236), (770, 20614), (847, 18740), (937, 16940), (1210, 13118), (1540, 10307), (1694, 9370), (1874, 8470), (2420, 6559), (3388, 4685), (3748, 4235)]