20916530

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{283}}^1\times {\mathrm{389}}^1$

素因数の和:698

約数の個数: 32

約数和(自身を含む): 39873600

約数和(自身を除く): 18957070

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 283, 389, 566, 778, 1415, 1945, 2830, 3890, 5377, 7391, 10754, 14782, 26885, 36955, 53770, 73910, 110087, 220174, 550435, 1100870, 2091653, 4183306, 10458265, 20916530]

約数ペア:

[(1, 20916530), (2, 10458265), (5, 4183306), (10, 2091653), (19, 1100870), (38, 550435), (95, 220174), (190, 110087), (283, 73910), (389, 53770), (566, 36955), (778, 26885), (1415, 14782), (1945, 10754), (2830, 7391), (3890, 5377)]