20805119984

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{631}}^1\times {\mathrm{187339}}^1$

素因数の和:187989

約数の個数: 40

約数和(自身を含む): 44044383360

約数和(自身を除く): 23239263376

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 631, 1262, 2524, 5048, 6941, 10096, 13882, 27764, 55528, 111056, 187339, 374678, 749356, 1498712, 2060729, 2997424, 4121458, 8242916, 16485832, 32971664, 118210909, 236421818, 472843636, 945687272, 1300319999, 1891374544, 2600639998, 5201279996, 10402559992, 20805119984]

約数ペア:

[(1, 20805119984), (2, 10402559992), (4, 5201279996), (8, 2600639998), (11, 1891374544), (16, 1300319999), (22, 945687272), (44, 472843636), (88, 236421818), (176, 118210909), (631, 32971664), (1262, 16485832), (2524, 8242916), (5048, 4121458), (6941, 2997424), (10096, 2060729), (13882, 1498712), (27764, 749356), (55528, 374678), (111056, 187339)]