20371120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3307}}^1$

素因数の和:3338

約数の個数: 80

約数和(自身を含む): 59067648

約数和(自身を除く): 38696528

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 3307, 6160, 6614, 13228, 16535, 23149, 26456, 33070, 36377, 46298, 52912, 66140, 72754, 92596, 115745, 132280, 145508, 181885, 185192, 231490, 254639, 264560, 291016, 363770, 370384, 462980, 509278, 582032, 727540, 925960, 1018556, 1273195, 1455080, 1851920, 2037112, 2546390, 2910160, 4074224, 5092780, 10185560, 20371120]

約数ペア:

[(1, 20371120), (2, 10185560), (4, 5092780), (5, 4074224), (7, 2910160), (8, 2546390), (10, 2037112), (11, 1851920), (14, 1455080), (16, 1273195), (20, 1018556), (22, 925960), (28, 727540), (35, 582032), (40, 509278), (44, 462980), (55, 370384), (56, 363770), (70, 291016), (77, 264560), (80, 254639), (88, 231490), (110, 185192), (112, 181885), (140, 145508), (154, 132280), (176, 115745), (220, 92596), (280, 72754), (308, 66140), (385, 52912), (440, 46298), (560, 36377), (616, 33070), (770, 26456), (880, 23149), (1232, 16535), (1540, 13228), (3080, 6614), (3307, 6160)]