80851880

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{27689}}^1$

素因数の和:27773

約数の個数: 32

約数和(自身を含む): 184415400

約数和(自身を除く): 103563520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 27689, 55378, 110756, 138445, 221512, 276890, 553780, 1107560, 2021297, 4042594, 8085188, 10106485, 16170376, 20212970, 40425940, 80851880]

約数ペア:

[(1, 80851880), (2, 40425940), (4, 20212970), (5, 16170376), (8, 10106485), (10, 8085188), (20, 4042594), (40, 2021297), (73, 1107560), (146, 553780), (292, 276890), (365, 221512), (584, 138445), (730, 110756), (1460, 55378), (2920, 27689)]