28564240

素因数分解:

$2^4\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1289}}^1$

素因数の和:1579

約数の個数: 40

約数和(自身を含む): 66703320

約数和(自身を除く): 38139080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 277, 554, 1108, 1289, 1385, 2216, 2578, 2770, 4432, 5156, 5540, 6445, 10312, 11080, 12890, 20624, 22160, 25780, 51560, 103120, 357053, 714106, 1428212, 1785265, 2856424, 3570530, 5712848, 7141060, 14282120, 28564240]

約数ペア:

[(1, 28564240), (2, 14282120), (4, 7141060), (5, 5712848), (8, 3570530), (10, 2856424), (16, 1785265), (20, 1428212), (40, 714106), (80, 357053), (277, 103120), (554, 51560), (1108, 25780), (1289, 22160), (1385, 20624), (2216, 12890), (2578, 11080), (2770, 10312), (4432, 6445), (5156, 5540)]