28774928

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19763}}^1$

素因数の和:19791

約数の個数: 40

約数和(自身を含む): 68620608

約数和(自身を除く): 39845680

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 19763, 39526, 79052, 138341, 158104, 256919, 276682, 316208, 513838, 553364, 1027676, 1106728, 1798433, 2055352, 2213456, 3596866, 4110704, 7193732, 14387464, 28774928]

約数ペア:

[(1, 28774928), (2, 14387464), (4, 7193732), (7, 4110704), (8, 3596866), (13, 2213456), (14, 2055352), (16, 1798433), (26, 1106728), (28, 1027676), (52, 553364), (56, 513838), (91, 316208), (104, 276682), (112, 256919), (182, 158104), (208, 138341), (364, 79052), (728, 39526), (1456, 19763)]